Confusing date December 2006 Infobox anatomy Name Amnion Latin GraySubject 12 GrayPage 56 Image Gray14.png Caption Surface view of embryo of Hylobates concolor. Image2 Gray30.png Caption2 Human fetus, enclosed in the amnion. System MeshName Amnion MeshNumber A10.615.284.277 Code Terminologia Embryologica TE E6.0.1.2.0.0.9 For the alien race in Stephen R. Donaldson s The Gap Cycle , see Amnion Gap Cycle . The amnion is a Biological membrane membrane building the amniotic sac that surrounds and protects an embryo . It is developed in reptile s, bird s, and mammal s, which are hence called Amniote Amniota but not in amphibian s and fish Ichthyopsida , which are consequently termed Anamniota . The primary ... stages of the formation of the amnion have not been observed in the youngest embryo which has been studied the amnion was already present as a closed sac, and appears in the inner cell mass as a cavity ... by the body stalk with the mesodermal lining of the chorion. When first formed the amnion is in contact ... amnii begins to accumulate within it. This fluid increases in quantity and causes the amnion to expand ... canal. In reptiles, birds, and many mammals In reptiles, birds, and many mammals the amnion is developed ... forming the amnion, the outer the false amnion or serosa. The space between the amnion and the serosa ... amniotic pregnancy Extra amniotic pregnancy is a rare condition that can result from a rupture of the amnion ... of embryo of Hylobates concolor. Image Gray17.png Human embryo length, 2 mm. Dorsal view, with the amnion ... mm. Image Gray29.png Diagram of a transverse section, showing the mode of formation of the amnion ... Catfetus1.jpg Opened uterus with cat fetus in midgestation 1 Navel umbilicus , 2 amnion, 3 allantois ... Gray s Extraembryonic and fetal membranes Category Embryology ca Amni cs Amnion de Amnion et Amnion eo Amnio kk lt Amnionas nl Amnion ja pl Owodnia pt mnion ru sr sv Amnion tl Amnion te tr Amniyon s v s uk zh ... more details
Amnion nodosum are nodules on the fetal surface of the amnion , and is frequently present in oligohydramnios . ref name pmid18081444 cite journal author Adeniran AJ, Stanek J, title Amnion nodosum revisited clinicopathologic and placental correlations journal Arch Pathol Lab Med volume 131 issue 12 pages 1829 33 year 2007 pmid 18081444 doi 10.1043 1543 2165 2007 131 1829 ANRCAP 2.0.CO 2 ref References reflist Category Embryology disease stub ... more details
primarysources date February 2009 The Amnion singular, Amnioni are a fictional alien species in Stephen ... with and play a major role in the series from Forbidden Knowledge onwards. Amnion are fundamentally ... the Amnion defensive Solidarity this is where the above description of an Amnioni comes from. Vertigus ... these orders directly something of an idealist , he resolved to travel to the Amnion ship and deliver ... of kick starting diplomatic relations between the two races. The Amnion in return gave him a canister ... place. This is where the debate over first contact started from the Amnion s existence had already .... The Amnion had been discovered when the ship Far Star encountered a satellite of alien origin, containing ... scientific, economic, and cultural impact to qualify as first contact . Mutagens The main threat of the Amnion ... so it becomes at least partially Amnion. This ability was first discovered by humans during tests on the material discovered in the Amnion satellite Donaldson remarks that Earth science being what ... Mining Companies Police, and why this was done. Actions in the series The Amnion are not introduced ... is not intended to be a definitive plot summary, more an overview of the parts the Amnion play ... Hyland is taken to Enablement Station to have her child force grown by the Amnion. This is the only possibility, as she has convinced Nick Succorso that the child is his son. The Amnion expose Morn ... therefore revealing that her love for him is not real. The Amnion wish to study the effects of the zone ... the escape pod that Davies is in, sending it towards the illegal shipyard of Billingate. The Amnion ... by the UMC Police. The Amnion repair the gap drive of Captain s Fancy , but sabotage it to test ... recaptures Davies. Morn is traded to the Amnion, but survives being injected by their mutagens ... and destroys Billingate meanwhile, one Amnion defensive, Tranquil Hegemony , is rammed and destroyed ... s captain, Sorus Chantelaine, is controlled by the Amnion through use of delayed action mutagens ... more details
, a region of space controlled by the mysterious Amnion Gap Cycle Amnion . The Amnion are a race of creatures ... the human species through use of mutagens that would turn humans into Amnion themselves, but for now ... and other illegals ever deal with the Amnion for fear that they themselves will be turned into Amnion ... would deal with them. Once they arrive at the station Nick convinces the Amnion to give them ... and to force grow Morn s unborn child to adulthood, in exchange for a phial of Nick s blood, which the Amnion ... caused by a drug, of which the Amnion are unaware . The Amnion keep their promises and give Nick ... of his real father, Angus Thermopyle. After getting back to the ship the Amnion inadvertently reveal ... a mind imprint would cause. Nick realizes that Morn s love for him was all a masque and when the Amnion ... gap drive far from Enablement, but still in Amnion space. To everyone s surprise the ship ... outpost called Billingate resides, two Amnion warships catch up and Nick negotiates to have Davies transferred ... trust Nick, Morn manages to get the pod reprogrammed so that it misses the Amnion ship and heads ... more details
arrive in their Gap Scout, Trumpet, at the illegal outpost in Amnion Gap Cycle Amnion space known ... the Amnion used on him have made him physically resemble a sixteen year old boy. Morn suffers ... somehow survived the copying which, it was explained, should have killed her. The Amnion, a misanthropic ... her these circumstances make the mother and son uniquely valuable to the Amnion. The Amnion have ... an Amnion warship. Nick had promised Davies to the Amnion as a show of good faith. In his fury he gives ... to counteract Amnion mutagens that would turn her into one of them. Nick is left in a precarious position. The Amnion continue to demand Davies Hyland, but Davies is in the custody of The Bill, who shrewdly asks for compensation for the child. Because of their convoluted dealings, the Amnion have ... Nick be able to recover him. Nick of course does not mention he s already handed Morn over to the Amnion ... Morn over to the Amnion, some of his crew, Mikka Vasaczk, Nick s second in command, Vector Shaheed ... to turn him over to the Amnion. Nick also reveals that Morn is in Amnion custody. Angus begins to form a plan to rescue her when Milos, and then Nick, leave the ship. Milos immediately heads to the Amnion ... agent for some time. The Amnion emissary, Marc Vestabule, an abortive Amnion attempt at turning a human into an Amnion while maintaining a human like appearance, informs Milos that both they and The Bill ..., subdues Milos and injects him with Amnion mutagens. In the meantime Nick is confronted by his former ..., Mikka, Sib and Angus himself go EVA to the Amnion sector to rescue Morn. After breaking inside, Angus is confronted by Milos, who has now been turned into an Amnion while still retaining his human memories, mannerisms and form the Amnion apparently having perfected their mutagens. Milos attempts ... party witnesses an Amnion shuttle containing The Bill leave the station, as well as the destruction of an Amnion warship that had been rammed by Captain s Fancy, which Leite did to prevent the ship ... more details
Membrane most commonly means a thin, selective barrier, but it is sometimes used for films that function as separators, like biological membranes. Membrane may also refer to Acoustic membrane Amnion Basement membrane Biological membrane Cell membrane Chorioallantoic membrane Fetal membrane Inner membrane Membrane Membrane keyboard Membrane structure Membrane M Theory Mucous membrane Outer membrane Serous membrane Synthetic membrane The Membranes , a punk band Tympanic membrane disambig ... more details
Infobox Embryology Name PAGENAME Latin pedunculus truncalis GraySubject 10 GrayPage 53 Image Gray27.png Caption Diagram showing the expansion of amnion and delimitation of the umbilicus. Image2 Gray21.png Caption2 Section through the embryo. System MeshName MeshNumber DorlandsPre s 21 DorlandsSuf 12755040 The caudal end of the embryo is at first connected to the chorion by a band of mesoderm called the body stalk , but with the formation of the caudal fold the body stalk assumes a ventral position a diverticulum of the yolk sac extends into the tail fold and is termed the hind gut . The function of the body stalk is later replaced by the umbilical cord . Additional images gallery Image Gray17.png Human embryo length, 2 mm. Dorsal view, with the amnion laid open. X 30. Image Gray22.png Human embryo of 2.6 mm. Image Gray26.png Diagram showing later stage of allantoic development with commencing constriction of the yolk sac. Image Gray31.png Model of human embryo 1.3 mm. long. Image Gray32.png Section through ovum imbedded in the uterine decidua. Image Gray40.png Embryo between eighteen and twenty one days. Image Gray977.png Human embryo about fifteen days old. Brain and heart represented from right side. Digestive tube and yolk sac in median section. gallery External links EmbryologySwiss hdisqueembry triderm0 developmental biology stub Embryology Category Embryology ... more details
Confusing date December 2006 Infobox Embryology Name Primitive groove Latin sulcus primitivus GraySubject 6 GrayPage 47 Image Gray14.png Caption Surface view of embryo of Hylobates concolor . The amnion has been opened to expose the embryonic disk . Image2 Caption2 System CarnegieStage 9 Precursor GivesRiseTo MeshName MeshNumber DorlandsPre g 12 DorlandsSuf 12402766 A shallow groove, the primitive groove , appears on the surface of the primitive streak , and the anterior end of this groove communicates by means of an aperture, the blastophore , with the yolk sac . External links EmbryologySwiss hdisqueembry triderm02 Gray s Embryology Category Embryology developmental biology stub ... more details
Infobox Embryology Name Conceptus Latin GraySubject GrayPage Image Caption Image2 Caption2 System CarnegieStage Days Precursor GivesRiseTo MeshName MeshNumber DorlandsPre c 50 DorlandsSuf 12253783 Conceptus latin is conceptio , derivatives of zygote denotes the embryo and its adnexa appendages or adjunct parts or associated membranes i.e. the products of conception . ref DorlandsDict two 000023411 conceptus ref The conceptus includes all structures that develop from the zygote, both embryonic and extraembryonic. It includes the embryo as well as the embryonic part of the placenta and its associated membranes amnion , chorion gestational sac , and yolk sac . References Reflist Category Embryology Developmental biology stub zh ... more details
Congenital amputation is a congenital disorder that can be caused by amniotic band syndrome fibrous bands of the amnion that constrict foetus foetal limbs to such an extent that they fall off due to missing blood supply. The child is born without one or more limbs or without parts of limbs Amelia birth defect amelia . Causes Congenital amputations can result from a number of causes. One common cause is amniotic band syndrome , which occurs when the inner fetal membrane amnion ruptures without injury to the outer membrane chorion . Fibrous bands from the ruptured amnion float in the amniotic fluid and can get entangled with the fetus, thus reducing blood supply to the developing limbs to such an extent that the limbs can become strangulated, the tissues die and are absorbed into the amniotic fluid. Amnion ruptures can be caused by teratogenesis teratogenic drugs e.g. thalidomide , which causes phocomelia , or environmental chemicals ionizing radiation atomic weapons , radioiodine , radiation therapy infections metabolic imbalance Physical trauma trauma Treatment In rare cases, if diagnosed in utero, fetal surgery may be considered to save a limb which is in danger of amputation . See also The term congenital amputation is sometimes used loosely to mean congenital absence . Literature Gabos PG. Department of Orthopedic Surgery, Alfred I. duPont Hospital for Children, Wilmington, DE 19899, USA Modified technique for the surgical treatment of congenital constriction bands of the arms and legs of infants and children Orthopedics. 2006 May 29 5 401 4 Walter JH Jr, Goss LR, Lazzara AT. Department of Orthopedics, Pennsylvania College of Podiatric Medicine, Philadelphia 19107, USA. Amniotic band syndrome J Foot Ankle Surg. 1998 Jul Aug 37 4 325 333 Light TR, Ogden JA. Dept. of Orthopaedic Surgery, Loyola University School of Medicine, Maywood, Illinois 60153, USA Congenital constriction band syndrome. Pathophysiology and treatment Yale J Biol Med. 1993 May Jun 66 3 143 155 F ... more details
Infobox Embryology Name PAGENAME Latin GraySubject GrayPage Image Gray14.png Caption Surface view of embryo of Hylobates concolor. The amnion has been opened to expose the embryonic disk. Primitive pit not labeled, but region is visible. Image2 Caption2 System CarnegieStage Days Precursor GivesRiseTo MeshName MeshNumber DorlandsPre DorlandsSuf The primitive pit is a depression in the center of the primitive node , connecting to the notochord . It consists of part of the primitive streak . External links http www.embryology.ch anglais hdisqueembry triderm01.html http isc.temple.edu marino embryology EMBII97 img020.GIF http cancerweb.ncl.ac.uk cgi bin omd?primitive pit http embryology.med.unsw.edu.au Medicine BGDlab3 11.htm http www.ana.ed.ac.uk database humat notes embryo ectoderm primstr.htm Gray s Anatomy stub Embryology Category Developmental biology ... more details
Infobox embryology Name PAGENAME Latin adnexa fetalia GraySubject GrayPage Image Caption Image2 Caption2 MeshName MeshNumber Code Terminologia Embryologica TE E6.0.2.0.0.0.1 The fetal membranes , or chorioamniotic membranes , are the amnion and chorion which surround and protect a developing fetus . ref http www.utdol.com patients content topic.do?topicKey ENoB8VcJdDhaLB UpToDate Patient Preview Fetal membranes Anatomy and biochemistry Author Seth Guller, PhD. Retrieved on Mars 7, 2010 ref References reflist Category Embryology medicine stub Extraembryonic and fetal membranes sr ... more details
would have it Vector Shaheed was one of the lead scientists working on an anti mutagen drug. The Amnion Gap Cycle Amnion , the beings that inhabit Forbidden Space, would have their mutagens turn the entire human race into Amnion themselves, and the immunity drug that Vector was working on would ... of humanity to protect them should the Amnion invade human space. On their way into human space ... and Punishers crew assume that the pursuing craft either belongs to the misanthropic Amnion, or is in their employ ... to sell Morn and Davies to the Amnion, Nick is a prisoner aboard Trumpet. When he receives Angus ... ship in the Amnion s employ captained by Sorus Chatelaine, a woman who betrayed and scarred Nick as a young man, something he wants revenge for. Through Soar the Amnion hope to capture the crew of Trumpet .... When Trumpet and Soar reach the edge of the swarm, then run into Punisher and an Amnion defensive named ... more details
of the indie rock group http amnion.bandcamp.com Amnion . In February 2008, http amnion.bandcamp.com Amnion released their debut full length album AmenNamO . ref http www.la underground.net ... amnion AmenNamo at cdbaby.com ref In March 2009, Aaron wrote an original score to Yukio Mishima s 1966 ... more details
Infobox disease Name Chorioamnionitis ICD10 ICD10 O 41 1 o 30 , ICD10 P 02 7 p 00 ICD9 ICD9 658.4 , ICD9 762.7 ICDO Image Chorioamnionitis high mag.jpg Caption Micrograph showing chorioamnionitis. The clusters of blue dots are inflammatory cells neutrophil s, eosinophil s and lymphocyte s . H&E stain . Width 150 OMIM MedlinePlus eMedicineSubj ped eMedicineTopic 89 DiseasesDB MeshID D002821 Chorioamnionitis is an inflammation of the fetal membrane s amnion and chorion due to a bacteria l infection . It typically results from bacteria ascending into the uterus from the vagina and is most often associated with prolonged childbirth labour . Risk of developing chorioamnionitis increases with each vaginal exam during final month of pregnancy and during labor. sup 3 sup Background The fetal membranes consist of two parts The outer membrane is the chorion . It is closest to the mother and physically supports the much thinner amnion. The inner membrane is the amnion . It is in direct contact with the amniotic fluid , which surrounds the fetus . Diagnosis Image chorioamnionitis intermed mag.jpg thumb right 250px Intermediate magnification micrograph of moderate chorioamnionitis. H&E stain . Clinical Chorioamnionitis is diagnosed clinically in the setting of ref Elmar Peter Sakala, MD, MA, MPH, FACOG. Professor of GYNOB, Loma Linda University of medicine, California. Codirector of Student Clerkship. Dept of GYNOB ref maternal fever . uterus uterine tenderness in the presence of confirmed premature rupture of membranes PROM . Exclusions maternal upper respiratory infection . maternal urinary tract infection . Pathologic Chorioamnionitis can be diagnosed from a histology histologic examination of the fetal membranes. Infiltration of the chorionic plate by neutrophil s is diagnostic of mild chorioamnionitis. More severe chorioamnionitis involves subamniotic tissue and may have fetal membrane necrosis and or abscess formation. Severe chorioamnionitis may be accompanied by vasculit ... more details
Infobox Disease Name Oligohydramnios Image Caption DiseasesDB 9202 ICD10 ICD10 O 41 0 o 30 ICD9 ICD9 658.0 ICDO OMIM MedlinePlus eMedicineSubj radio eMedicineTopic 898 MeshID D016104 http onlinemedicinefacts.com obstetrics oligohydramnios Oligohydramnios is a condition in pregnancy characterized by a deficiency of amniotic fluid . It is the opposite of polyhydramnios . Clinical Features The common clinical features are smaller symphysio fundal height, fetal malpresentation, undue prominence fetal parts and reduced amount of amniotic fluid.no Diagnosis Diagnosis is made by ultrasound measurement of the amniotic fluid index AFI 5cm. Several different methods exist for calculating AFI, that produce different index numbers below which oligohydramnios is said to be present. Causes It is typically caused by fetal urinary tract abnormalities such as bilateral renal agenesis Potter s syndrome , fetal polycystic kidneys, or genitourinary obstruction. Uteroplacental insufficiency is another common cause. Most of these abnormalities can also be detected by obstetric ultrasound. It may also occur simply due to dehydration of the mother, maternal use of angiotensin converting enzyme inhibitors, or without a determinable cause idiopathic . Complications Complications may include cord compression, musculoskeletal abnormalities such as facial distortion and clubfoot, pulmonary hypoplasia and intrauterine growth restriction. Amnion nodosum is frequently also present nodules on the fetal surface of the amnion . ref name pmid18081444 cite journal author Adeniran AJ, Stanek J, title Amnion nodosum revisited clinicopathologic and placental correlations journal Arch Pathol Lab Med volume 131 issue 12 pages 1829 33 year 2007 pmid 18081444 doi 10.1043 1543 2165 2007 131 1829 ANRCAP 2.0.CO 2 ref The use of oligohydramnios as a predictor of gestational complications is controversial. ref name pmid17689653 cite journal author Johnson JM, Chauhan SP, Ennen CS, Niederhauser A, Magann EF title A ... more details
sac. Image Gray27.png Diagram showing the expansion of amnion and delimitation of the umbilicus ... Opened uterus with cat fetus in midgestation 1 navel umbilicus , 2 amnion , 3 allantois, 4 Yolk sac ... more details
, a space station in alien influenced space. The aliens are known as the Amnion Gap Cycle Amnion ... means, the Amnion gain control by genetic methods mutating non Amnion life forms into Amnioni. Only the technological and military might of the UMCP keeps them at bay. At Enablement Station, the Amnion ... to retain her sanity. This surprises the Amnion, as normally the process of mind imprinting destroys the original mind Morn has used some process to preserve her sanity, but the Amnion don t know what this process is. If they can discover and replicate this process, the Amnion can create human resembling Amnion and potentially gain control over human inhabited space. As such, Davies becomes very valuable to the Amnion. When Morn breaks Davies out of the Amnion s captivity and flees aboard Captain s Fancy , the Amnion commit an act of interstellar war and pursue them into human space. Meanwhile ... rank and file Morn Hyland Captain Davies Hyland Senior Captain Dolph Ubikwe Amnion Milos Taverner Marc ... Fasner by means of possessing the technology of the Amnion and Fafner by his possession of Freia ... powers , and his treacherous alliance with the Amnion, Mime s self made trap between Wotan s prophecy ... of their targets. The threat and ambitions of the Amnion reflect Alberich s plan to enslave ... more details
Infobox Embryology Name Foregut Latin praeenteron proenteron GraySubject 241 GrayPage 1101 Image Gray27.png Caption Diagram showing the expansion of amnion and delimitation of the Navel umbilicus . Image2 Digestive system showing bile duct.png Caption2 Termination of the foregut. System CarnegieStage 9 Precursor Mesenchyme GivesRiseTo MeshName MeshNumber Code Terminologia Embryologica TE E5.4.4.0.0.0.2 The foregut is the anterior part of the alimentary canal , from the mouth to the duodenum at the entrance of the bile duct . At this point it is continuous with the midgut . Pain in the foregut is typically referred to the epigastric region, just below the intersection of the ribs. Structures of the foregut are Esophagus Stomach Duodenum 1st and 2nd parts Liver Gallbladder Inferior portion of Pancreas Spleen Note that it is located in the foregut region, but is not a gut organ Superior portion of pancreas Arterial supply to all these structures is from the celiac trunk , and venous drainage is by the portal venous system . Lymph from these organs is drained to the prevertebral celiac nodes at the origin of the celiac artery from the aorta . See also Midgut Hindgut External links EmbryologyUNC digest 008 MedicalMnemonics 2452 http sprojects.mmi.mcgill.ca embryology gi fg.htm Foregut embryology at mcgill.ca Development of digestive system Category Embryology of digestive system developmental biology stub digestive stub de Vorderdarm eo Anta intesto ... more details
Infobox Embryology Name Embryonic disc Latin discus embryonicus GraySubject 6 GrayPage 47 Image Gray11.png Caption Section through embryonic disk of Vespertilio murinus . Image2 Gray13.png Caption2 Surface view of embryo of a rabbit . After K lliker. arg. Embryonic disk. pr. Primitive streak . System CarnegieStage 4 Days Precursor GivesRiseTo MeshName MeshNumber Code Terminologia Embryologica TE E2.0.1.2.0.0.14 The floor of the amniotic cavity is formed by the embryonic disk or embryonic disc composed of a layer of prismatic cells, the embryonic ectoderm , derived from the inner cell mass and lying in apposition with the endoderm . In humans, it is the stage of development that occurs after implantation and prior to the embryonic folding e.g. seen between about day 14 to day 21 post fertilization . It is derived from the epiblast layer, which lies between the hypoblast layer and the amnion . The epiblast layer is derived from the inner cell mass . Through the process of gastrulation , the bilaminar embryonic disc becomes trilaminar. The notochord forms thereafter. Through the process of neurulation , the notochord induces the formation of the neural tube in the embryonic disc. External links MUNAnatomy embryo emb2 http personalpages.manchester.ac.uk staff j.gough lectures the cell diffdev1 page11.html Diagram at manchester.ac.uk Gray s Embryology Category Embryology developmental biology stub fi Alkiolevy ... more details
Infobox Embryology Name Vitelline duct Latin GraySubject 10 GrayPage 54 Image Gray30.png Caption Fetus of about eight weeks, enclosed in the amnion . Vitelline duct labeled at lower right. Image2 Gray982.png Caption2 Sketches in profile of two stages in the development of the human digestive tube. Vitelline duct labeled on bottom image. System CarnegieStage Days 28 Precursor midgut , yolk sac GivesRiseTo MeshName Vitelline Duct MeshNumber A16.254.891 DorlandsPre DorlandsSuf In the human embryo , the vitelline duct , also known as the omphalomesenteric duct, is a long narrow tube that joins the yolk sac to the midgut lumen of the developing fetus. ref name usmle1 122 Cite book last1 Le first1 Tao first2 Vikas last2 Bhushan first3 Neil last3 Vasan title First Aid for the USMLE Step 1 2010 20th Anniversary Edition location USA publisher The McGraw Hill Companies, Inc. year 2010 pages 122 isbn 978 0 07 163340 6 ref It appears at the end of the fourth week, when the yolk sac presents the appearance of a small pear shaped vesicle the umbilical vesicle . Obliteration Generally, the duct fully obliterates narrows and disappears during the 5 6th week of fertilization age 9th week of gestational age , but a failure of the duct to close is termed a vitelline fistula. This results in discharge of meconium from the umbilicus. ref name usmle1 122 About two per cent of fetuses exhibit a type of vitelline fistula characterized by persistence of the proximal part of the vitelline duct as a diverticulum protruding from the small intestine , Meckel s diverticulum , which is situated about two feet above the ileocecal junction and may be attached by a fibrous cord to the abdominal wall at the Navel umbilicus . Afterbirth The vesicle can be seen in the afterbirth as a small, somewhat oval shaped body, the diameter of which varies from 1 mm to 5 mm. It is situated between the amnion and the chorion and may lie on or at a varying distance from the placenta . Sometimes a narrowin ... more details
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