About qualities of writing or speech Ductus linguistics Infobox Anatomy Name Duct Latin GraySubject GrayPage Image Dissected lactating breast gray1172.png Caption Dissection of a lactating breast. br 1 Fat br 2 Lactiferous duct lobule br 3 Lobule br 4 Connective tissue br 5 Sinus anatomy Sinus of lactiferous duct br 6 Lactiferous duct Image2 Gray1033.png Caption2 Section of the human esophagus. Moderately magnified. The section is transverse and from near the middle of the gullet. BR a. Fibrous covering . BR b. Divided fibers of longitudinal muscular coat . BR c. Transverse muscular fibers . BR ... In anatomy and physiology , a duct is a circumscribed channel leading from an exocrine gland or Organ anatomy organ . Types of ducts Examples include class wikitable Duct From To Carries Lactiferous duct mammary gland nipple milk Cystic duct gallbladder common bile duct bile Common hepatic duct liver common bile duct bile Common bile duct common hepatic duct and cystic duct pancreatic duct bile Pancreatic duct pancreas hepatopancreatic ampulla bile and pancreatic enzymes Ejaculatory duct vas deferens urethra semen Parotid duct parotid gland mouth saliva Submaxillary duct submaxillary gland mouth saliva Major sublingual duct sublingual gland mouth saliva Bartholin s ducts Bartholin s glands Vulva Bartholin s fluid Duct system As ducts travel from the acinus which generates the fluid to the target ... of a lymphoid nodule . BR g. Stratified epithelial lining . BR h. Mucous gland . BR i. Gland duct ... as follows class wikitable Type of duct Epithelium Surroundings intralobular duct simple cuboidal parenchyma interlobular duct simple columnar connective tissue interlobar duct stratified columnar ... Image Gray1025.png Section of submaxillary gland of kitten . Duct semidiagrammatic. X 200. Image ... External links eMedicineDictionary duct UCDavisOrganology termscells&tissues epithelial exocrinegland ... Glands anatomy stub Category Glands bn nn Ductus ... more details
Wiktionary A duct may refer to Ductanatomy , various ducts in anatomy and physiology Duct HVAC , for transfer of air between spaces in a structure Duct tape , a kind of adhesive tape Ducted fan , motor for aircraft Electrical bus duct, a metal enclosure for busbar s Duct industrial exhaust , industrial exhaust duct system which are designed for low pressure pneumatic convey of gas, fumes, dusts, shavings, and other pollutants from works space to atmosphere after cleaning and removal of contaminations. Atmospheric duct , a horizontal layer in the lower atmosphere in which the vertical refractive index gradients are such that radio signals a are guided or ducted, b tend to follow the curvature of the Earth, and c experience less attenuation in the ducts than they would if the ducts were not present Tropospheric ducting , a type of radio propagation in the Troposphere that allows signals to travel unusually long distances. Earth Ionosphere waveguide , a type of Atmospheric ductDuct bank , a set of electrical conduit s, entering a building underground Tear duct , which carry tears to the eyes Duct Publishing , an imprint of the German group VDM Publishing devoted to the reproduction of Wikipedia content See also Duck disambiguation Ducked disambiguation ja ... more details
File S duct NASA.jpg thumb S duct geometry Image LockheedL1011.jpg thumb right The Lockheed L 1011 , the largest and only wide body aircraft widebody aircraft to feature an S duct An S duct is a type of jet engine intake duct, used in several types of trijet aircraft . In this configuration, the intake is in the upper rear center of the aircraft, just below the Vertical stabilizer stabilizer , while the exhaust and engine is at the rear of the aircraft. The S duct is located in the tail, or empennage , of the aircraft. The shape of the S duct is distinctive and easily recognized, and was used in several aircraft, beginning in 1962 with the Hawker Siddeley Trident . Currently, the Dassault Falcon 7X and Dassault Falcon 900 business jets, and the Tupolev Tu 154M narrow body airliner in limited production, are the only aircraft in production that use the S duct design. Benefits and drawbacks The S duct was invented as a solution for positioning the central engine on trijets. The S duct was easier to service than alternative trijet designs. ref name aeroJournal cite book url http books.google.com ... for the S duct layout. In fact, only the DC 10 and MD 11 trijets chose not to use the S duct and go ... by limiting the curve of the S duct to less than 25 of the radius of the engine intake diameter. Citation needed date December 2008 The S duct design also reduced the total empty aircraft weight. The research undertaken during the design of the L 1011 indicated that losses of using an S duct ... books?lr &id 0GVTAAAAMAAJ&dq s duct aircraft&q s duct &pgis 1 search anchor title SAE Transactions ... duct is a complicated and costly design. Citation needed date March 2009 Since modern jet ... with only two engines, the trijet design has currently fallen out of favour. List of S duct aircraft ... Yak 42 The Boeing 747 747 300 trijet Boeing 747 300 Trijet was designed with an S duct layout, but never ... Image Vladair tu154old backview.jpg Rear view of a soviet Tu 154 S duct aircraft gallery ... more details
Infobox Anatomy Name PAGENAME Latin GraySubject GrayPage Image Caption Image2 Caption2 Precursor System Artery Vein Nerve Lymph MeshName MeshNumber Code TerminologiaHistologica 2 00 02.0.03068 An Interlobular duct is a gland ductanatomyduct which connects more than one lobule . It is smaller than an interlobar duct . Examples of where it can be found include pancreas ref OklahomaHistology 80 13 Pancreas ref ref http www.cvm.okstate.edu instruction mm curr histology HistologyReference imagesco pancreas4F.jpg Histology at okstate.edu ref mammary gland ref BUHistology 09002loa Female Reproductive System mammary gland, pregnancy, duct ref parotid gland ref BUHistology 10101lba Digestive System Oral Cavity and Teeth parotid gland ref References references Glands Category Glands anatomy stub ... more details
Infobox Anatomy Name PAGENAME Latin GraySubject GrayPage Image Caption Image2 Caption2 Precursor System Artery Vein Nerve Lymph MeshName MeshNumber Code TerminologiaHistologica 2 00 02.0.03069 A interlobar duct is a gland ductanatomyduct which connects more than one anatomic Lobe anatomy lobe . Examples of where it can be found include the parotid gland ref http www.usc.edu hsc dental ghisto gi c 67.html ref and submandibular gland . ref http www.usc.edu hsc dental ohisto Cards sal 54 bb.html ref See also interlobular duct References references Glands Category Glands anatomy stub pt Ducto excretor terminal ... more details
Infobox Anatomy Name Parotid duct Latin ductus parotideus GraySubject 242 GrayPage 1134 Image Gray1023.png Caption Right parotid gland. Deep and anterior aspects. Parotid duct labeled at center right. Image2 Gray1024.png Caption2 Dissection, showing salivary glands of right side. Parotid duct visible at center. System MeshName Stensen s Duct MeshNumber A03.556.500.760.640 DorlandsPre d 29 DorlandsSuf 12315033 The parotid duct , also known as Stensen s duct , is the route that saliva takes from the parotid gland into the mouth. It passes through the buccal fat pad buccal fat , buccopharyngeal fascia, and buccinator muscle then opens into the vestibule of the mouth next to the maxillary second molar tooth . The buccinator acts as a valve that prevents inflation of the duct during blowing. Running along with the duct superiorly is the transverse facial artery and upper buccal nerve running along with the duct inferiorly is the lower buccal nerve. Pathology Blockage, whether caused by Salivary duct calculus salivary duct stones or external compression, may cause pain and swelling of the parotid gland parotitis . Eponym It is named after Nicolas Steno 1638 1686 , a Denmark Danish anatomy anatomist credited with its discovery in 1660. Additional images gallery File Gray1200.png Outline of side of face, showing chief surface markings. File Parotid interlobular duct.JPG Interlobular duct. File Parotid striated duct.JPG Striated duct. File Parotid duct papillae.JPG The left papilla soft tissue protuberance at the exit of the parotid duct is clearly visible on the cheek in the right of the photo. gallery External links http kobiljak.msu.edu CAI ANT551 Unit02 Topic08 U2 L8 O2.html Diagram at MSU eMedicine ent 178 Parotid duct injuries WhoNamedIt doctor 2052 Mouth anatomy Category Glands of mouth digestive stub fr Canal de St non it Dotto di Stenone pt Ducto parot deo ru ... more details
Infobox Anatomy Name Endolymphatic duct Latin ductus endolymphaticus GraySubject 232 GrayPage 1052 Image Gray924.png Caption The membranous labyrinth. Ductus endolymphaticus labeled at bottom center. Image2 Gray925.png Caption2 Endolymphatic duct is 6, and is labeled at top center. System Precursor MeshName MeshNumber DorlandsPre d 29 DorlandsSuf 12314825 From the posterior wall of the saccule a canal, the endolymphatic duct , is given off this duct is joined by the ductus utriculosaccularis , and then passes along the aquaeductus vestibuli and ends in a blind pouch saccus endolymphaticus on the posterior surface of the petrous portion of the temporal bone , where it is in contact with the dura mater . Additional images gallery Image Gray902.png Transverse section through head of fetal sheep, in the region of the labyrinth. X 30. Image Gray927.png Transverse section of a human semicircular canal and duct gallery External links eMedicineDictionary Endolymphatic duct http www.ajnr.org cgi reprint 18 5 881.pdf The Endolymphatic Duct and Sac Gray s Vestibular system Category Vestibular system anatomy stub ca Conducte endolimf tic pl Przew d r dch onki ... more details
Infobox Anatomy Name Intercalated duct Latin GraySubject GrayPage Image Gray1105.png Caption Section of pancreas of dog. X 250. AIntercalated ducts visible but not labeled. Image2 Centroacinar cells.jpg Caption2 Centroacinar cells System MeshName MeshNumber DorlandsPre d 29 DorlandsSuf 12314169 Code TerminologiaHistologica 2 00 02.0.03067 The intercalated duct , also called intercalary duct, is the portion of an exocrine gland leading directly from the acinus to a striated duct . The intercalated duct forms part of the intralobular duct . This duct has the thinnest epithelium of any part of the duct system, and the epithelium is usually classified as low simple cuboidal . ref cite web title Histology of Glands url http www.siumed.edu dking2 intro glands.htm publisher Southern Illinois University accessdate 23 May 2011 ref They are found in both the pancreas ref UCDavisOrganology digestive mammal pancreas pancreas1 Mammal, pancreas LM, Medium ref ref http courseweb.edteched.uottawa.ca medicine histology English Gastrointestinal Pancreas11.htm Slide at uottawa.ca ref ref GeorgiaPhysiology 6 6ch4 s6ch4 17 ref and in salivary gland s. ref http www.usc.edu hsc dental ohisto Cards sal 16 bb.html Slide at usc.edu ref ref UCDavisOrganology Digestive mammal salivary1 salivary3 Mammal, salivary glands LM, Medium ref ref GeorgiaPhysiology 6 6ch4 s6ch4 4 ref References references External links eMedicineDictionary Intercalated duct Epithelium and epithelial tissue Category Exocrine system anatomy stub pt Ducto intercalar ... more details
Context date December 2009 Cleanup date December 2009 The perilymphatic duct is where the perlyphatic space i.e., the vestibule of the inner ear is connected to the subarachnoid space. This works as a type of shunt to eliminate excess perilymph fluid from the perlymphatic space around the cochlea of the ear . Perilymph is continuous with cerebrospinal fluid CSF in the subarachnoid space. CSF pressure abnormalities do not generally have clinical impact on the inner ear which is explained physically by the bore diameter of the perilymphatic duct and its length. This duct goes through the Human skull skull and is parallel with but not directly associated with the endolyphatic duct . The duct is lined by an epithelium. Category Ear anatomy stub ... more details
Other uses2 anatomy expert subject 1 Biology date November 2011 wikiversity Topic Anatomy Image The Anatomy Lesson.jpg thumb right 260px Anatomy Lesson of Dr. Nicolaes Tulp The anatomy lesson of Dr. Nicolaes Tulp by Rembrandt shows an anatomy lesson taking place in Amsterdam in 1632. Anatomy from the Ancient ... of living things . It is a general term that includes human anatomy , animal anatomy zootomy , and plant anatomy phytotomy . In some of its facets anatomy is closely related to embryology , comparative anatomy and Phylogenetics comparative embryology , ref name intro HGray cite web url http www.bartleby.com 107 1.html title Introduction page, Anatomy of the Human Body . Henry Gray. 20th edition. 1918 accessdate 19 March 2007 ref through common roots in evolution . Anatomy is subdivided into gross anatomy or Macroscopic scale macroscopic anatomy and Microscopic scale microscopic anatomy. ref name intro HGray Gross anatomy is the study of anatomical structures that can, when suitably presented ... anatomy is the study of minute anatomical structures on a microscopic scale. It includes histology ... between histology and cell biology isn t strictly made as described here . The history of anatomy has ... anatomy organ s and structures in the body. Methods have also improved dramatically, advancing from ... , and MRI . Anatomy should not be confused with anatomical pathology also called morbid anatomy ... anatomy organ s. Superficial anatomy Superficial anatomy or surface anatomy is important in anatomy .... ref name intro HGray With knowledge of superficial anatomy, physician s or veterinary surgeon s gauge the position and anatomy of the associated deeper structures. Superficial is a directional ... of the body. ref cite book last Marieb first Elaine title Human Anatomy & Physiology year 2010 publisher Pearson Education, Inc. location San Francisco page 12 ref Human anatomy main Human anatomy ... of Gray s Anatomy Human anatomy, including gross human anatomy and histology, is primarily the scientific ... more details
Infobox Anatomy Name PAGENAME Latin GraySubject GrayPage Image Caption Image2 Caption2 Precursor System Artery Vein Nerve Lymph MeshName MeshNumber Code TerminologiaHistologica 2 00 02.0.03066 An intralobular duct is the portion of an exocrine gland inside a lobule , leading directly from acinus to interlobular duct . It is composed of two subdivisions, the intercalated duct and the striated duct . In the human mammary gland, the intralobular duct is a part of the glandular system that resides within the lobules. Lobules contain clusters of ducts whose secretory alveolies are drained by the intralobular duct. The intralobular ducts are usually lined with simple cuboidal epithelial cells that are lined by myoepithelial cells as well. The intralobular ducts of the lobules drain into the interlobular ducts between lobules. They can be seen in pancreas ref GeorgiaPhysiology 6 6ch4 s6ch4 17 ref ref http ect.downstate.edu courseware histomanual pancreas.html Overview in pancreas at downstate.edu ref ref http www.courseweb.uottawa.ca medicine histology English Gastrointestinal Pancreas.htm Slide at uottawa.ca ref salivary glands ref http www.medicine.uiowa.edu anatomy dental oralhist OHWIN unit1 i 65.html Slide at uiowa.edu ref References references External links eMedicineDictionary Intralobular duct Glands Category Exocrine system anatomy stub ... more details
Infobox Anatomy Name Nasolacrimal duct Latin d. nasolacrimalis GraySubject 227 GrayPage 1029 Image Gray896.png Caption The lacrimal apparatus. Right side. Image2 Gray1199.png Caption2 Outline of bones of face, showing position of air sinuses. System MeshName Nasolacrimal Duct MeshNumber A09.371.463.640 DorlandsPre d 29 DorlandsSuf 12314970 The nasolacrimal duct sometimes called the tear duct carries tears from the lacrimal sac into the nasal cavity . The opening of the nasolacrimal duct into the inferior nasal meatus is partially covered by a mucosal fold valve of Hasner or plica lacrimalis . Excess tears flow through nasolacrimal duct which drains into the inferior nasal meatus . This is the reason the nose starts to run when a person is crying or has watery eyes from an allergy, and why one can sometimes taste eye drops. Like the lacrimal sac, the duct is lined by stratified columnar epithelium containing mucus secreting goblet cells , and is surrounded by connective tissue. Obstruction of the nasolacrimal duct, known as dacryostenosis, ref Blocked tear ducts in infants, Pediatric Views, June 2006 http www.childrenshospital.org views june06 blocked tear ducts.html ref leads to the excess overflow of tears called epiphora medical epiphora . A congenital obstruction can cause cystic expansion of the duct and is called a dacrocystocele or Timo cyst. Persons with dry eye conditions can be fitted with punctal plug s that seal the ducts to limit the amount of fluid drainage and retain moisture. The canal containing the nasolacrimal duct is called the nasolacrimal canal . Additional images gallery Image Gray196.png Roof, floor, and lateral wall of left nasal cavity. gallery br See also Congenital lacrimal duct obstruction Dacrocystocele Lacrimal apparatus External links SUNYAnatomyFigs 33 04 09 NormanAnatomy lesson9 References Reflist Accessory organs of the eye DEFAULTSORT Nasolacrimal Duct Category Eye anatomy cs Slzovod de Tr nenwege es Conducto nasolagrimal fr Canal lacrymonasal ... more details
A striated duct is a gland ductanatomyduct which connects an intercalated duct to an interlobular duct . It is characterized by the basal infoldings of its plasma membrane, characteristic of ion pumping activity by the numerous mitochondria. ref UCDavisOrganology Digestive mammal salivary2 salivary1 Mammal, salivary glands EM, Low ref ref UCDavisOrganology Digestive mammal salivary1 salivary4 Mammal, salivary glands LM, Medium ref Along with the intercalated ducts, they function to modify salivary fluid by secreting HCO sub 3 sub sup sup and K sup sup and reabsorbing Na sup sup and Cl sup sup using the Na K pump and the Cl HCO sub 3 sub pump. Their epithelium can be simple cuboidal or simple columnar . ref http www.siumed.edu dking2 intro glands.htm 4 SIU SOM Histology GI Bot generated title ref Striated ducts are part of the intralobular duct s. They are found in the submandibular gland ref BUHistology 10103loa ref ref http www3.umdnj.edu histsweb lab18 lab18submandibular.html Histology at umdnj.edu ref and the parotid gland . ref http www.usc.edu hsc dental ohisto Cards sal 15 bb.html Oral histology at usc.edu ref They are not present in pancreas . References references External links eMedicineDictionary Striated duct Glands Category Exocrine system anatomy stub pt ducto estriado ... more details
Infobox Lymph Name Thoracic duct Latin ductus thoracicus GraySubject 176 GrayPage 690 Image Gray599.png Caption The thoracic and right lymphatic ducts. Thoracic duct is thin vertical white line at center. Image2 Gray600 color.png Caption2 Modes of origin of thoracic duct. a. Thoracic duct. a . Cisterna ... of the left subclavian vein and left internal jugular vein Precursor MeshName Thoracic Duct MeshNumber Dorlands three 000032646 DorlandsID Thoracic duct In human anatomy , the thoracic duct of the lymphatic system is the largest lymphatic vessel in the body. It is also known as the left lymphatic duct , alimentary duct , chyliferous duct , and Van Hoorne s canal . It collects most of the lymph in the body ... lobe of the lung, which is collected by the right lymphatic duct and drains into the circulatory ... internal jugular veins. Location In adults, the thoracic duct is typically 38 45cm in length and an average ... chyli . It extends vertically in the chest and curves Posterior anatomy posteriorly to the left ... the diaphragm anatomy diaphragm at the aortic aperture and ascends the posterior mediastinum ..., and direction of flow In adults, the thoracic duct transports up to 4 L of lymph per day. The lymph transport in the thoracic duct is mainly caused by the action of breath ing, aided by the duct ... two valves at the junction of the duct with the left subclavian vein, to prevent the flow of venous blood into the duct. Clinical significance When the thoracic duct is blocked or damaged a large ... , a lymph node in the left supraclavicular area, in the vicinity where the thoracic duct empties ... thorax lymph SUNYAnatomyFigs 21 05 02 The thoracic duct and azygos venous network. SUNYAnatomyImage ... duct http www.anatomyatlases.org AnatomicVariants Cardiovascular Images0300 0388.shtml Diagram at anatomyatlases.org ... duct http radiology.rsna.org content 252 3 897 suppl DC1 Instruction video for Ultrasound examination of the thoracic duct Thoracic lymph nodes Lymphatic flow Category Lymphatics of the torso ar ... more details
Infobox Album See Wikipedia WikiProject Albums Name The Anatomy Of Type studio Longtype of cover version cover songs Artist Between the Buried and Me Cover Between The Buried And Me The Anatomy Of.jpg Released Start date 2006 6 13 Recorded Genre Progressive metal , progressive rock , thrash metal Length 69 56 Label Victory Records Producer Jamie King Last album Alaska album Alaska br 2005 This album The Anatomy Of br 2006 Next album Colors Between the Buried and Me album Colors br 2007 Album ratings rev1 Allmusic rev1Score Rating 4 5 Allmusic class album id r838526 review pure url yes link rev2 Lambgoat rev2Score Rating 3 10 http www.lambgoat.com albums view.aspx?id 2045 link The Anatomy Of is the first cover album by American heavy metal band Between the Buried and Me . It is the second release to include Dan Briggs musician Dan Briggs , Blake Richardson , and Dustie Waring . Track listing tracklist collapsed headline extra column Original artist date total length 69 56 writing credits yes title1 Blackened song Blackened writer1 James Hetfield , Jason Newsted , Lars Ulrich extra1 Metallica small 1988 small length1 6 40 title2 Kickstart My Heart writer2 Nikki Sixx extra2 M tley Cr e small 1989 small length2 4 55 title3 The Day I Tried to Live writer3 Chris Cornell extra3 Soundgarden small 1994 small length3 5 28 title4 Bicycle Race writer4 Freddie Mercury extra4 Queen band Queen small 1978 small length4 3 09 title5 Three of a Perfect Pair song Three of a Perfect Pair writer5 Adrian Belew , Bill Bruford , Robert Fripp , Tony Levin extra5 King Crimson small 1984 small length5 4 11 title6 Us and Them song Us and Them writer6 Rick Wright , Roger Waters extra6 Pink Floyd small 1973 small length6 7 52 title7 Geek U.S.A. writer7 Billy Corgan extra7 The Smashing Pumpkins small 1993 ... the Buried and Me DEFAULTSORT Anatomy Of, The Category Between the Buried and Me albums Category 2006 albums Category Victory Records albums pt The Anatomy Of ... more details
Infobox Anatomy Name Alveolar duct Latin GraySubject GrayPage Image Gray975.png Caption Detailed drawing of the alveoli from Gray s Anatomy , 1918 Schematic longitudinal section of a primary lobule of the lung anatomical unit BR r. b respiratory bronchiole BR al. d alveolar duct at atria BR a. s alveolar sac BR a alveolus or air cell BR p. a. pulmonary artery BR p. v pulmonary vein BR l lymphatic BR l. n lymph node . Image2 Gray974.png Caption2 Part of a secondary lobule from the depth of a human lung , showing parts of several primary lobules . BR 1, bronchiole BR 2, respiratory bronchiole BR 3, alveolar duct BR 4, Atrium heart atria BR 5, alveolar sac BR 6, alveolus or air cell BR m, smooth muscle BR a, branch pulmonary artery BR v, branch pulmonary vein BR s, septum between secondary lobules . System MeshName MeshNumber DorlandsPre DorlandsSuf Code TerminologiaHistologica 3 05 02.0.00022 Alveolar ducts are the tiny end ducts of the branching airways that fill the lung s. Each lung holds approximately 1.5 to 2 million of them. The tubules divide into two or three alveolar sac s at the distal end. They are formed from the confluence openings of several alveoli. Distal terminations of alveolar ducts are atria which then end in alveolar sacs. In human anatomy, respiratory bronchioles exists proximal to the alveolar ducts. The epithelial lining consists of smooth muscle knobs covered by nonciliated, simple cuboidal cells. The smooth muscle constricts under parasympathetic innervation and relax under sympathetic innervation. Additional images Image Alveolar duct2.JPG thumb 250px left human alveolar duct gallery Image Illu bronchi lungs.jpg Bronchi, bronchial tree, and lungs gallery External links eMedicineDictionary Alveolar duct AnatomyAtlasesMicroscopic 11 229 Alviolar Duct and Alveolar Sacs BUHistology 13607loa Respiratory System lung sheep , alveolar duct UCDavisOrganology respiratory lung lung7 lung3 Mammal, lung EM, Medium Lung Category Lung anatomy respiratory stub ... more details
Infobox Anatomy Name Cystic duct Latin ductus cysticus GraySubject 250 GrayPage 1198 Image illu liver gallbladder.jpg Caption 1 Right lobe of liver BR 2 Left lobe of liver BR 3 Quadrate lobe of liver BR 4 Round ligament of liver BR 5 Falciform ligament BR 6 Caudate lobe of liver BR 7 Inferior vena cava BR 8 Common bile duct BR 9 Hepatic artery BR 10 Portal vein BR 11 Cystic duct BR 12 Hepatic duct BR 13 Gallbladder BR Precursor System Artery cystic artery Vein Nerve Lymph MeshName MeshNumber DorlandsPre d 29 DorlandsSuf 12314797 Bile ducts and pancreas The cystic duct is the short Ductanatomyduct that joins the gallbladder to the common bile duct . It usually lies next to the cystic artery . It is of variable length. It contains Spiral valves of Heister spiral valves of Heister, which do not provide much resistance to the flow of bile. Function Bile can flow in both directions between the gallbladder and the common hepatic duct and the common bile duct. In this way, bile is stored in the gallbladder in between meal times. The hormone cholecystokinin , when stimulated by a fatty meal, promotes bile secretion by increased production of hepatic bile, contraction of the gall bladder, and relaxation of the Sphincter of Oddi . Clinical significance Gallstone s can enter and obstruct the cystic duct, preventing the flow of bile. The increased pressure in the gallbladder leads to swelling and pain. This pain is sometimes referred to as a gallbladder attack because of its sudden onset. During a cholecystectomy , the cystic duct is clipped two or three times and a cut is made between the clips, freeing the gallbladder to be taken out. See also Accessory bile duct Additional images gallery Image Digestive system showing bile duct.png Digestive system diagram showing the cystic duct Image Gray1095 gall bladder.png The gall bladder and bile ducts laid open. Image Bilebladder.png The portal vein and its tributaries. gallery External links eMedicineDictionary cystic duct SUNYAnatomyFigs ... more details
Unreferenced stub auto yes date December 2009 Infobox Bone Name Frontonasal duct Latin GraySubject 33 GrayPage 138 Image Caption Image2 Caption2 System Precursor MeshName MeshNumber DorlandsPre d 29 DorlandsSuf 12314080 The frontal air sinuses are lined by mucous membrane , and each communicates with the corresponding nasal cavity by means of a passage called the frontonasal duct . This Ethmoidal infundibulum infundibulum located within the ethmoid bone connects the nasal cavity with the frontal air sinuses. Skull Nose anatomy DEFAULTSORT Frontonasal Duct Category Bones of the head and neck Musculoskeletal stub Respiratory stub th ... more details
The nasofrontal duct is a duct connecting the infundibulum and frontal sinus . A true nasofrontal duct only exists in 15 of the population. ref cite web url http www.utmb.edu otoref grnds frontalfx.htm title Frontal sinus fractures Feb.1995 accessdate 2008 03 09 format work ref Some sources prefer the term frontal recess . ref cite web url http www.medcyclopaedia.com library topics volume vi 2 f frontal recess.aspx title Medcyclopaedia Frontal recess accessdate 2008 03 09 format work ref References reflist Category Head and neck Anatomy stub ... more details
Infobox Anatomy Name Submandibular duct Latin ductus submaxillaris GraySubject 241 GrayPage 1135 Image Gray1024.png Caption Dissection, showing salivary glands of right side. Labeled as submaxillary duct , but is identified as submandibular duct in newer sources. Image2 Gray782.png Caption2 Mandibular division of trifacial nerve , seen from the middle line. The small figure is an enlarged view of the otic ganglion . Wharton s duct labeled in lower left. System MeshName Wharton s Duct MeshNumber A03.556.500.760.640 DorlandsPre d 29 DorlandsSuf 12315123 The submandibular duct Wharton s duct , ref WhoNamedIt synd 2297 Wharton s duct ref submaxillary duct is one of the salivary ducts. It is about 5 cm. long, and its wall is much thinner than that of the parotid duct . It begins by numerous branches from the deep surface of the gland, and runs forward between the mylohyoideus , hyoglossus , and genioglossus , then between the sublingual gland and the genioglossus , and opens by a narrow orifice on the summit of a small wiktionary Papilla papilla at the side of the frenulum lingu . On the hyoglossus it lies between the lingual and hypoglossal nerve s, but at the anterior border of the muscle the lingual nerve passes lateral inferior and medial to the submandibular duct. the terminal branches of the lingual nerve ascend on its medial side. It drains saliva from the submandibular gland s and sublingual gland s to the sublingual caruncle at the base of the tongue. It was initially described by the English anatomist Thomas Wharton anatomist Thomas Wharton and is sometimes referred to by his name. ref cite book author Wharton T title Adenographia sive glandularum totius corporis descriptio location London publisher Wharton year 1656 pages pages 128 137 ref This is the duct from which a hungry person, preparing to take a first bite of food, might accidentally eject a spray of salivary ... Submandibular duct MedicalMnemonics 329 Gray s Mouth anatomy digestive stub Category ... more details
Infobox Anatomy Name Duct of Bellini Latin ductus papillaris GraySubject 253 GrayPage 1223 Image Kidney Tubules.gif Caption Position of the duct of Bellini in the kidney Image2 Caption2 Precursor System Artery Vein Nerve Lymph MeshName MeshNumber DorlandsPre d 29 DorlandsSuf 12314994 The duct of Bellini is an anatomical structure of the kidneys , also known as papillary collecting duct . The straight or collecting tubes commence in the radiate part of the renal cortex , where they receive the curved ends of the distal convoluted tubule s. They unite at short intervals with one another, the resulting tubes presenting a considerable increase in caliber, so that a series of comparatively large tubes passes from the bases of the Medullary ray anatomy medullary ray s into the renal pyramids . In the medulla the tubes of each pyramid converge to join a central tube, the duct of Bellini , which finally opens on the summit of one of the renal papilla e the contents of the tube are therefore discharged into one of the renal calyces . Eponym So named in honor of its discoverer, Italy Italian anatomist Lorenzo Bellini 1643 1704 . Cancer of Bellini s Duct Collecting duct, or Bellini s duct, carcinoma is a relatively rare subtype of renal cell carcinoma RCC , accounting for less than 1 of all RCCs Kennedy et al. , 1990 Rumpelt et al. , 1991 Carter et al. , 1992 St rkel et al. , 1997 Srigley and Eble, 1998 Swartz et al. , 2002 . Many reported cases have occurred in younger patients, often in the third, fourth, or fifth decade of life Carter et al. , 1992 . Collecting duct carcinomas are derived from the medulla, but many are infiltrative, and extension into the cortex is common Pickhardt ... . Immunohistochemical and molecular analyses suggest that collecting duct RCC may resemble transitional cell carcinoma, and some patients with advanced collecting duct RCC have responded to cisplatin ... Kidney anatomy genitourinary stub ... more details
Infobox Anatomy Name PAGENAME Latin ductus cochlearis GraySubject 232 GrayPage 1054 Image Gray928.png Caption Diagrammatic longitudinal section of the cochlea. visible at far right under latin name ductus cochlearis Width 500px Image2 Caption2 System MeshName Cochlear Duct MeshNumber A09.246.631.246.292 DorlandsPre d 29 DorlandsSuf 12314784 Refimprove date January 2009 The cochlear duct or scala media is an endolymph filled cavity inside the cochlea , located in between the scala tympani and the scala vestibuli , separated by the basilar membrane and Reissner s membrane the vestibular membrane respectively. Scala media houses the organ of Corti . Additional images gallery Image Gray903.png Transverse section of the cochlear duct of a fetal cat. Image Gray924.png The membranous labyrinth. Image Gray929.png Floor of ductus cochlearis. Image Cochlea crosssection.png Cross section of the cochlea. gallery External links eMedicineDictionary cochlear duct http www.vcu.edu anatomy OB Ear sld015.htm Presentation at Virginia Commonwealth University http www.avatar.com.au courses PPofM hearing hearing3.html Cross section at avatar.com.au Auditory system Category Ear Category Auditory system ca Conducte coclear de Ductus cochlearis gl Scala media ... more details
Infobox Anatomy Name Lactiferous duct Latin ductus lactiferi GraySubject 271 GrayPage 1268 Image Breast anatomy normal scheme.png Caption The Breast cross section scheme of the mammary gland . br 1. Chest wall br 2. Pectoralis muscle s br 3. Lobules br 4. Nipple br 5. Areola br 6. Milk duct br 7. Adipose tissue Fatty tissue br 8. Human skin Skin System MeshNumber DorlandsPre d 29 DorlandsSuf 12314912 Lactiferous ducts form a tree branched system connecting the lobules of the mammary gland to the tip of the nipple . They are also referred to as galactophores , galactophorous ducts , mammary ducts , mamillary ducts and milk ducts . They are the structures which carry milk toward the nipple in a Lactation lactating female. Lactiferous ducts are lined by a columnar epithelium supported by myoepithelial cell s. Within the areola , the lactiferous duct were thought to dilate to form the lactiferous sinus in which supposedly milk accumulates between breastfeeding sessions. However new research suggests that lactiferous sinus does not exist. ref cite doi 10.1111 j.1469 7580.2005.00417.x ref When a woman is not lactating, the lactiferous duct is frequently blocked by a keratin plug. This plug prevents bacteria from entering the duct in non lactating women. The columnar epithelium plays a key role in balancing milk production, milk stasis and resorption. The cells of the columnar epithelium form tight junction s which are regulated by hormones and local factors like pressure and cassein content. Prolactin and or placental lactogen are required for tight junction closure while progesterone is the main hormone preventing closure before birth. ref name Nguyen 2001 cite pmid 11479131 ref ... Lactation Breastfeeding References reflist External links eMedicineDictionary Lactiferous duct Breast anatomy DEFAULTSORT Lactiferous Duct Category Breast anatomyanatomy stub cs Ml kovod da M lkegang ... caused by a similar mechanism in combination with an infection duct ectasia is similar and overlapping ... more details
Infobox Anatomy Name Gartner& 39 s duct Latin ductus longitudinalis epo phori GraySubject 252 GrayPage 1206 Image Caption Image2 Caption2 Precursor Wolffian duct ref name isbn0 914168 99 1 cite book author Netter, Frank H. Cochard, Larry R. title Netter s Atlas of human embryology publisher Icon Learning Systems location Teterboro, N.J year 2002 pages 173 isbn 0 914168 99 1 oclc doi ref System Artery Vein Nerve Lymph MeshName MeshNumber DorlandsPre d 29 DorlandsSuf 12314932 Gartner s duct is a potential embryological remnant in human female development of the mesonephric ducts in the development of the urinary and reproductive organs . It was discovered and described in 1822 by Hermann Treschow Gartner . The paired mesonephric ducts in the male , in contrast, go on to form the paired epididymis , vas deferens ductus deferens , ejaculatory duct and seminal vesicle . In the female they may persist between the layer of the broad ligament of the uterus and in the wall of the vagina . Clinical significance These may give rise to Gartner s duct cyst s. ref name pmid16890546 cite journal author Dwyer PL, Rosamilia A title Congenital urogenital anomalies that are associated with the persistence of Gartner s duct a review journal Am. J. Obstet. Gynecol. volume 195 issue 2 pages 354 9 year 2006 month August pmid 16890546 doi 10.1016 j.ajog.2005.10.815 url http linkinghub.elsevier.com retrieve pii S0002 9378 05 02438 5 ref See also List of homologues of the human reproductive system References reflist External links GPnotebook 1657798663 WhoNamedIt synd 2571 EmbryologyUNC genital 016a Female reproductive system Category Female reproductive system anatomy stub it Dotto di Gartner ... more details
title Changes in gene expression during Wolffian duct development journal Horm. Res. volume 65 issue ... development In the female , in the absence of testosterone support, the Wolffian duct regresses, and inclusions ... of the vagina a Gartner s duct or cyst could develop as a remnant. The derivatives of the Mesonephric duct can be remembered using the mnemonic , Gardener s SEED for Gartner s duct, Seminal vesicles S eminal vesicles , Epididymis E pididymis , E jaculatory duct and Ductus deferens D uctus deferens ... duct Derivatives publisher LifeHugger accessdate 2009 12 12 ref History It is named after Caspar ... development List of homologues of the human reproductive system Masculinization M llerian duct Sexual ... How the Body Works Sex Development Sexual Differentiation Duct Differentiation The Hospital for Sick ... more details
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