wiktionarypar arachnoidArachnoid may refer to Relating to arachnid s Arachnoid mater , a layer of the meninges, membranes that contain the central nervous system Arachnoid astrogeology , a geological structure found only on the planet Venus See also Arkanoid , an arcade game disambig ... more details
Infobox Anatomy Name Arachnoid trabeculae Image Arachnoid Trabeculae.png Caption The arachnoid trabeculae connecting the arachnoid and pial layers of the meninges The arachnoid trabeculae are delicate strands of connective tissue that loosely connect the two innermost layers of the meninges the arachnoid mater and the pia mater . ref http www.britannica.com EBchecked topic 31820 arachnoid trabeculae Arachnoid trabeculae . Encyclop dia Britannica. 2010. Encyclop dia Britannica Online. 09 Sep. 2010. ref They are found within the subarachnoid space where cerebrospinal fluid is also found. Embryologically, the trabeculae are the remnants of the common precursor that forms both the arachnoid and pial layers of the meninges. ref Farr, Gary, MD. http www.becomehealthynow.com article bodynervousadvanced 813 The Nervous System Advanced Version The Meninges , 24 Jun 2002. Retrieved 9 Sep 2010. ref See also Subarachnoid space Arachnoid mater Notes references Meninges Category Meninges ... more details
Infobox Anatomy Name PAGENAME Latin GraySubject 193 GrayPage 878 Image Gray769 en.svg Caption Diagrammatic representation of a section across the top of the skull, showing the membranes of the brain, etc. Arachnoid granulation label is at top right. Image2 Caption2 System MeshName MeshNumber Arachnoid granulations or arachnoid villi are small protrusions of the arachnoid brain arachnoid the thin second layer covering the brain through the dura mater the thick outer layer . They protrude into the venous sinuses of the brain, and allow cerebrospinal fluid CSF to exit the sub arachnoid space and enter the blood stream. Largest granulations lie along the superior sagittal sinus , a large venous space running from front to back along the centre of the head on the inside of the human skull skull . They are, however, present along other dural sinuses as well. Smaller granulations are called villi , large calcification calcified ones are referred to as pacchionian bodies. Function The arachnoid granulations act as one way valve s. Normally the pressure of the CSF is higher than that of the venous system , so CSF flows through the villi and granulations into the blood. If the pressure is reversed for some reason, fluid will not pass back into the subarachnoid space of the brain . The reason for this is not known. It has been suggested that the endothelial cell s of the venous sinus create vacuole s of CSF, which move through the cell and out into the blood. The importance of arachnoid granulations for the drainage of CSF is controversial. By some accounts, a large portion perhaps the majority of CSF is drained through lymphatics associated with extracranial segments of the cranial nerves. A large proportion of CSF is believed to leave the cranial vault through the axons of CN I olfactory nerve through their extension through the cribiform plate . Eponym Occasionally, they are referred to by their old name Pacchioni s granulations or pacchionian bodies , named after Italian a ... more details
Infobox disease Name Arachnoid cyst Image Arachnoid cyst.jpg Caption An MRI of a 25 year old woman with left frontotemporal arachnoid cyst. DiseasesDB 33219 ICD10 G93.0 ICD9 ICD9 348.0 ICDO OMIM 207790 MedlinePlus eMedicineSubj radio eMedicineTopic 48 MeshID D016080 Arachnoid cysts are cerebrospinal ... M, Tatagiba M. Cerebellopontine angle arachnoid cyst harbouring ectopic neuroglia , Pediatr Neurosurg ... brain and the cranial base or on the arachnoid membrane , one of the three membranes that cover the brain and the spinal cord . ref name ninds http www.ninds.nih.gov disorders arachnoid cysts arachnoid cysts.htm NINDS Arachnoid Cysts Information Page ref Arachnoid cysts are a congenital disorder , ref Gelabert Gonzalez M. Intracranial arachnoid cysts , Rev Neurol. , 2004 Dec 16 31 39 12 1161 6 .... ref name ninds Classification Arachnoid cysts can be found on the brain, or on the Vertebral column spine . Intracranial arachnoid cysts usually occur adjacent to the arachnoidal cistern. ref name joynt Arachnoid cyst. n.d. . Gale Encyclopedia of Neurological Disorders. Retrieved September 10, 2006, from Answers.com Web site http www.answers.com topic arachnoid cyst ref Spinal arachnoid cysts ... of a radiculopathy . ref name joynt Arachnoid cysts may also be classified as primary congenital or secondary ... Arachnoid Cysts in a kitten and a dog. J Vet Diagn Invest 2009. 21 5 707 710. Arachnoid cysts ... symptoms for this reason, diagnosis is often delayed. Signs and symptoms Patients with arachnoid ... in a study on affected children. ref Millichap JG. Temporal lobe arachnoid cyst attention deficit ... an arachnoid cyst. In a 2002 study involving 78 patients with a migraine or tension type headache, CT scans showed abnormalities in over a third of the patients, though arachnoid cysts only accounted ... 3 A 542 7. PMID 12244387 ref A study found 18 of patients with intracranial arachnoid cysts had non ... Cameron AD. Psychotic phenomena with migraine and an arachnoid cyst , Progress in Neurology and Psychiatry ... more details
Image VenusianArachnoid.png thumb 240px Venusian arachnoid In astrogeology , an arachnoid is a large structure of unknown origin, and they have been found only on the surface of the planet Venus . Arachnoids get their name from their resemblance to spider web s. They appear as wiktionary concentric concentric ovals surrounded by a complex network of fracture s, and can span 200 kilometers. Over thirty arachnoids have been identified on Venus, so far. The arachnoid might be a strange relative to the volcano , but possibly different arachnoids are formed by different processes. ref name APOD This article contains text from the Astronomy Picture of the Day http antwrp.gsfc.nasa.gov apod ap980120.html . As a work of the United States Federal Government, it is in the public domain. ref See also Astrogeology Chaos terrain Geysers on Mars Rille References reflist External links http antwrp.gsfc.nasa.gov apod ap980120.html Astronomy Picture of the Day Venus This article incorporates text from a public domain NASA website. Category Surface features of Venus Category Planetary geology crater stub ca Aracnoide es Aracnoide fr Arachno de exog ologie it Aracnoide esogeologia pt Aracnoide astrogeologia fi Araknoidi astrogeologia uk zh ... more details
In medicine , leptomeninges literally thin meninges is a term used to refer to the pia mater and arachnoid mater , two of the membranes that surround the brain and the spinal cord. ref EMedicineDictionary leptomeninges ref The morphology of the brain in meningococcal meningitis is said to be covered by exudate of the surface of, and within the leptomeninges. Because the arachnoid is connected to the pia by cob web like strands, it is structurally continuous with the pia, hence the name pia arachnoid or leptomeninges. References reflist Meninges Category Meninges es Leptomeninge ... more details
Villus Latin language Latin shaggy hair , ref name tiscali cite web url http www.tiscali.co.uk reference encyclopaedia hutchinson m0035419.html title villus work tiscali.co.uk accessdate 2009 06 19 ref plural villi may refer to Intestinal villus , the most common meaning when not more precisely specified Chorionic villi , found on the surface of the outermost membrane the chorion of the fetus Arachnoid villi , located on the arachnoid membrane of the brain Villi may also refer to Le Villi , opera by Puccini References references no Tarmtott disambig ... more details
ACMF may refer to Allied Central Mediterranean Force , a force consisting of the US Fifth Army and the British Eighth Army during World War II. Adriamycin , Cyclophosphamide , Methotrexate , and 5 Fluorouracil , a chemotherapy regimen used in the treatment of breast cancer Arachnoid cyst Arachnoid Cysts of the Middle Fossa, the most common location where intracranial arachnoid cysts are found Adivasi Cobra Militant Force , a militant adivasi organization in Assam Antimatter catalyzed nuclear pulse propulsion Antimatter Antiproton Catalyzed Micro Fission Fusion , a future technology being developed for long distance space travel Two similarly named country music organizations use this acronym Austria n Country Music Federation Australian Country Music Foundation disambig ... more details
the dura mater , the arachnoid mater , and the pia mater . The primary function of the meninges and of the cerebrospinal ... of the pia mater and arachnoid. The dura mater is a sac which envelops the arachnoid and has ... s. Diaphragma sellae , smallest infolding covers the pituitary gland and sella turcica . Arachnoid mater The middle element of the meninges is the arachnoid mater , so named because of its spider web like appearance. It provides a cushioning effect for the central nervous system . The arachnoid mater ... by flat cells also thought to be impermeable to fluid. The arachnoid does not follow the convolutions ..., particularly, a large number of fine filaments called arachnoid trabeculae pass from the arachnoid through the subarachnoid space to blend with the tissue of the pia mater. The arachnoid brain arachnoid .... Spaces The subarachnoid space is the space which normally exists between the arachnoid brain arachnoid and the pia mater , which is filled with cerebrospinal fluid . Normally, the dura mater is attached to the Human skull skull , or to the bones of the vertebral canal in the spinal cord . The arachnoid brain arachnoid is attached to the dura mater , while the pia mater is attached to the central nervous system tissue. When the dura mater and the arachnoid brain arachnoid separate through ... under the arachnoid it may occur spontaneously or as a result of trauma. A subdural hematoma is a hematoma collection of blood located in a separation of the arachnoid brain arachnoid from the dura mater . The small veins which connect the dura mater and the arachnoid brain arachnoid are torn, usually ... meninx . Mammals retain the dura mater, and the secondary meninx divides into the arachnoid mater arachnoid ... more details
for the psychedelic rock band SubArachnoid Space Infobox Anatomy Name Subarachnoid space Latin spatium subarachnoideum, cavum subarachnoideale GraySubject 193 GrayPage 876 Image Gray769 en.svg Caption Diagrammatic representation of a section across the top of the skull, showing the membranes of the brain, etc. Subarachnoid cavity visible at left. Image2 Gray770 en.svg Caption2 Diagrammatic transverse section of the medulla spinalis and its membranes. Subarachnoid cavity colored blue. System MeshName Subarachnoid Space MeshNumber A08.186.566.166.686 DorlandsPre s 16 DorlandsSuf 12746651 In the central nervous system , the subarachnoid cavity subarachnoid space is the interval between the arachnoid membrane and pia mater . It is occupied by spongy tissue consisting of trabecula e delicate connective tissue filaments that extend from the arachnoid mater and blend into the pia mater and intercommunicating channels in which the cerebrospinal fluid is contained. This cavity is small on the surface of the hemispheres of the brain . On the summit of each gyrus the pia mater and the arachnoid are in close contact, but in the Sulcus neuroanatomy sulci between the gyri, triangular spaces are left, in which the subarachnoid trabecular tissue is found. Whilst the pia mater closely follows the surface of the brain and dips into the sulci, the arachnoid bridges across them from gyrus to gyrus. At certain parts of the base of the brain, the arachnoid is separated from the pia mater by wide intervals, which communicate freely with each other and are named subarachnoid cistern in these the subarachnoid tissue is less abundant. The subarachnoid space is the location of the interface between the vascular tissue and the cerebrospinal fluid and is active in the blood brain barrier . The arachnoid mater continues down the spinal cord too, and the subarachnoid layer with it. It serves a similar function in the spinal cord as it does in the brain. See also Subarachnoid hemorrhage Epidural ... more details
wiktionarypar arachnid An arachnid is a member of a class of joint legged invertebrate animals. Arachnid may also refer to Arachnid Solitaire or Spider, a solitaire card game Arachnid or Bug Starship Troopers Bugs Starship Troopers , a member of a fictional alien race in Starship Troopers by Robert A. Heinlein See also Arachne disambiguation Arachnoid disambiguation disambig ... more details
Infobox Anatomy Name PAGENAME Latin spatium subdurale, cavum subdurale GraySubject 193 GrayPage 875 Image Gray769 en.svg Caption Diagrammatic representation of a section across the top of the skull, showing the membranes of the brain, etc. Subdural cavity visible at left. Image2 Gray770 en.svg Caption2 Diagrammatic transverse section of the medulla spinalis and its membranes. Subdural cavity is colored green, labeled at bottom and top right. System MeshName MeshNumber DorlandsPre s 16 DorlandsSuf 12746663 The subdural space or subdural cavity is an artificial space created by the separation of the arachnoid mater from the dura mater as the result of trauma, pathologic process, or the absence of cerebrospinal fluid as seen in a cadaver. In the cadaver , due to the absence of cerebrospinal fluid in the subarachnoid space , the arachnoid mater falls away from the dura mater. It may also be the site of trauma, such as a subdural hematoma , causing abnormal separation of dura and arachnoid mater. Hence, the subdural space is referred to as potential space potential or artificial space. See also Epidural space Subarachnoid space Meninges Subdural hematoma External links eMedicineDictionary subdural space cite journal author Haines D, Harkey H, al Mefty O title The subdural space a new look at an outdated concept journal Neurosurgery volume 32 issue 1 pages 111 20 year 1993 pmid 8421539 doi 10.1227 00006123 199301000 00017 MeshName Subdural space neuroscience stub Gray s meninges Category Nervous system Category Meninges ... more details
Infobox Brain Name PAGENAME Latin cisterna fossae lateralis cerebri GraySubject 193 GrayPage 877 Image Caption Image2 Caption2 IsPartOf Components Artery Vein BrainInfoType BrainInfoNumber MeshName MeshNumber DorlandsPre c 37 DorlandsSuf 12241855 The cistern of lateral cerebral fossa is formed in front of either temporal lobe by the arachnoid bridging across the lateral fissure . This cavity contains the middle cerebral artery . Gray s anatomy stub Meninges Category Meninges ... more details
Unreferenced date July 2009 Antonio Pacchioni 1665 1726 was an Italy Italian scientist and anatomist , who focused chiefly on the outermost meninges meningeal layer of the brain , the dura mater . Paccioni s granulations or pacchionian bodies , where the arachnoid layer protrudes through the dura, are named for him although they are now generally known as arachnoid granulations . Pacchioni was born in Reggio Emilia, Italy Reggio Emilia , where he would later attend university. He received his degree in medicine in 1688, and left for Rome in 1689. Persondata Metadata see Wikipedia Persondata . NAME Pacchioni, Antonio ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH 1665 PLACE OF BIRTH DATE OF DEATH 1726 PLACE OF DEATH DEFAULTSORT Pacchioni, Antonio Category Italian anatomists Category 1665 births Category 1726 deaths italy med bio stub pl Antonio Pacchioni ... more details
Infobox Brain Name Cisterna magna Latin cisterna cerebellomedullaris GraySubject 193 GrayPage 876 Image Gray768.png Caption Diagram showing the positions of the three principal cisterns in the brain. The cisterna magna is visible at the lower right. Image2 Caption2 System Ventricular system Ventricular BrainInfoType hier BrainInfoNumber 533 MeshName Cisterna Magna MeshNumber A08.186.566.166.686.351 The cisterna magna or cerebellomedullary cistern is one of three principal openings in the subarachnoid space between the arachnoid mater arachnoid and pia mater layers of the meninges surrounding the brain. The openings are collectively referred to as cistern neuroanatomy cistern s. The cisterna magna is located between the cerebellum and the dorsal surface of the medulla oblongata . Cerebrospinal fluid produced in the fourth ventricle drains into the cisterna magna via the lateral apertures and median aperture . The two other principal cisterns are the pontine cistern located between the pons and the medulla, and the interpeduncular cistern located between the cerebral peduncles. Cerebral spinal fluid can also be obtained by puncture of the cisterna magna cistern puncture . Meninges DEFAULTSORT Cisterna Magna Category Meninges sv Cisterna Magna Neuroscience stub ... more details
otheruses Musea Records is a non profit for the label s bands musician owned France French record label dedicated to progressive rock . It was founded in 1985 in music 1985 by Bernard Gueffier and Francis Grosse, along with a small team of friends Daniel Adt, Alain Juliac, Alain Robert, Thierry Sportouche, Jean Claude Granjeon, Pascal Ferry, Thierry Moreau and Fran ois Arnold. Musea s recording artists partial list Apocalypse band Apocalypse Arachnoid band Arachnoid Asia Minor band Asia Minor Atoll band Atoll Glass band Glass Hemmelig tempo Hemmelig Tempo Jack Dupon Komintern band Komintern Lazuli Level Pi Jean Pascal Boffo Little Tragedies Magma band Magma Minimum Vital band Minimum Vital Nemrud Opus 3 band Opus 3 Pulsar band Pulsar Qui Japanese band Qui Quidam band Quidam Jeff Sherman musician Jeff Sherman Shingetsu Shub Niggurath band Shylock Terpandre La Th orie des Cordes Versailles Vital Duo Yesterdays band Yesterdays Zao French band Zao See also List of record labels External links http www.musearecords.com Official website Category French record labels Category Progressive rock record labels Category Record labels established in 1985 France record label stub fr Musea it Musea nl Musea Records pt Musea uk Musea ... more details
Infobox Brain Name PAGENAME Latin cisterna interpeduncularis, cisterna basalis GraySubject 193 GrayPage 876 Image Gray768.png Caption Diagram showing the positions of the three principal subarachnoid cistern . Interpeduncular cistern labeled at left center. Image2 Gray708.svg Image2 Caption2 IsPartOf Components Artery Vein BrainInfoType BrainInfoNumber MeshName MeshNumber DorlandsPre c 37 DorlandsSuf 12241870 The interpeduncular cistern basal cistern or Fossa interpeduncularis is a wide cavity where the arachnoid extends across between the two temporal lobe s. It encloses the cerebral peduncle s and the structures contained in the interpeduncular fossa , and contains the arterial circle of Willis . Gray s neuroanatomy stub Meninges Category Meninges ... more details
Infobox Disease Name Nervous system neoplasm Image Caption DiseasesDB ICD10 ICD10 C 69 c 69 ICD10 C 72 c 69 BR ICD10 D 31 d 10 ICD10 D 33 d 10 ICD9 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID D009423 A nervous system neoplasm is a tumor affecting the nervous system . Types include Brain tumor Arachnoid cyst Optic nerve glioma Tumors Central nervous system tumors Category Nervous system neoplasia disease stub ... more details
saved book title Venus subtitle cover image Venus globe.jpg cover color Black Venus Overview Venus Features Atmosphere of Venus Atmosphere Geology of Venus Geology Volcanism on Venus Volcanism Arachnoid astrogeology Arachnoid List of geological features on Venus Geological features on Venus List of coronae on Venus Coronae on Venus List of craters on Venus Craters on Venus List of montes on Venus Montes on Venus List of terrae on Venus Terrae on Venus List of quadrangles on Venus Quadrangles on Venus Exploration Observations and explorations of Venus Observations and explorations List of artificial objects on Venus Artificial objects on Venus Colonization of Venus Colonization Terraforming of Venus Terraforming Flyby & direct missions Venera Venera 1 Venera 2 Venera 3 Venera 4 Venera 5 Venera 6 Venera 7 Venera 8 Venera 9 Venera 10 Venera 11 Venera 12 Venera 13 Venera 14 Venera 15 Venera 16 Mariner program Mariner 2 Mariner 5 Mariner 10 Zond program Zond 1 Pioneer Venus project Vega program Vega 1 Vega 2 Galileo spacecraft Galileo Magellan spacecraft Magellan Cassini Huygens Venus Express MESSENGER Akatsuki spacecraft Akatsuki IKAROS Shin en spacecraft Shin en Proposed missions Venera D Venus In Situ Explorer Venus Entry Probe Cancelled missions TMK Manned Venus Flyby Miscellany Ashen light Cytherean Hesperus Neith hypothetical moon Neith Venus in fiction Venusians Category Wikipedia books on astronomy Venus ... more details
Infobox Anatomy Name Denticulate ligaments Latin ligamentum denticulatum GraySubject 185 GrayPage 750 Image Gray767.png Caption The medulla spinalis and its membranes. Ligamentum denticulatum labeled vertically at bottom left. Image2 Gray770 en.svg Caption2 Diagrammatic transverse section of the medulla spinalis and its membranes. Denticulate ligament not labeled, but region is visible. System MeshName MeshNumber DorlandsPre l 09 DorlandsSuf 12492205 The pia mater of the spinal cord has a pair of denticulate ligament s one on each side of the spinal cord with 21 attachments per side which attach it to the arachnoid mater arachnoid and dura mater s. Named for their tooth like appearance, the denticulate ligaments are traditionally believed to provide stability for the spinal cord against motion within the vertebral column . Fortunately, from a clinical standpoint, denticulate ligaments do not play a significant role in lumbar spinal stenosis when compared to issues such as disc herniations, facet hypertrophy, shape of spinal canal, size of spinal canal, ligamentum flavum hypertrophy, or degenerative joint disease resulting in bony osteophyte formation. Additional images gallery Image Gray796.png A portion of the spinal cord, showing its right lateral surface. The dura is opened and arranged to show the nerve roots. gallery These ligaments may be affected by altered motion and position of the vertebral segments. Sources cite journal author Tubbs R, Salter G, Grabb P, Oakes W title The denticulate ligament anatomy and functional significance. journal J Neurosurg volume 94 issue 2 Suppl pages 271 5 year 2001 pmid 11302630 Clinically Oriented Anatomy. Moore, Keith and Arthur F. Dalley. Philadelphia, Lipincott, Williams and Williams 2006. cite book author RC Schafer DC PhD title Basic Principles of Chiropractic Neuroscience Chapter 5 Neuroconceptual Models of Chiropractic ACA Press 1998 & 124 http www.chiro.org ACAPress Neuroconceptual Models of Chiropractic.html See also ... more details
The term leptomeningeal refers to the two deep layers of the meninges the pia mater and the arachnoid mater . The leptomeningeal collateral circulation is a network of blood vessels supplying the brain that follows a diffuse course over the superficial surface of the brain. Leptomeningeal Collateral Circulation and Cerebrovascular Accidents If the middle cerebral artery is occluded during a CVA or stroke , there is dramatic loss of blood flow to the area of the brain supplied by this artery the lateral surfaces of the frontal, parietal and temporal lobes, including the primary motor and sensory cortexes . ref Neuroanatomy An Illustrated Color Text. 3rd Edition. Crossman & Neary. Published by Elsevier. ref The leptomeningeal collateral circulation allows a very limited degree of compensation for this. However, this mild compensatory effect is nowhere near adequate a CVA is a very serious medical emergency. See also The Circle of Willis , the major arterial blood supply to the brain References reflist Category Meninges med stub ... more details
Infobox Disease Name PAGENAME Image Caption DiseasesDB ICD10 ICD10 G 93 0 g 90 , ICD10 Q 04 6 q 00 ICD9 ICD9 348.0 , ICD9 742.4 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID D020863 A central nervous system cyst is a cyst that primarily presents in the tissue of the central nervous system . ref name pmid15068166 cite journal author Hirano A, Hirano M title Benign cysts in the central nervous system neuropathological observations of the cyst walls journal Neuropathology volume 24 issue 1 pages 1 7 year 2004 month March pmid 15068166 doi 10.1111 j.1440 1789.2003.00526.x url http www3.interscience.wiley.com resolve openurl?genre article&sid nlm pubmed&issn 0919 6544&date 2004&volume 24&issue 1&spage 1 ref Examples include choroid plexus cyst arachnoid cyst porencephaly References reflist disease stub CNS diseases of the nervous system Congenital malformations and deformations of nervous system Category Congenital disorders of nervous system ... more details
Infobox Disease Name Arachnoiditis Image ARACHNOIDITIS.JPG Caption Myelogram showing arachnoiditis in the lumbar spine DiseasesDB 22543 ICD10 ICD10 G 03 9 g 00 ICD9 ICD9 320 ICD9 322 ICDO OMIM MedlinePlus eMedicineSubj radio eMedicineTopic 49 MeshID D001100 Arachnoiditis is a neuropathic disease caused by the inflammation of the Meninges arachnoid , one of the Biological membrane membranes that surround and protect the nerve s of the central nervous system, including the brain and spinal cord . The arachnoid can become severely inflamed because of adverse reactions to chemicals, infection from bacteria or viruses , as the result of direct injury to the spine, chronic compression of spinal nerves, or complications from spinal surgery or other invasive spinal procedures. Inflammation can sometimes lead to the formation of scar tissue and adhesions which can cause the spinal nerves to stick together. This can be extremely painful especially if the last stage Adhesive Arachnoiditis is diagnosed, although clinical findings may not match pain levels. In other words it may appear mild on an MRI scan but the patient may be experiencing a great amount of pain. Symptoms Inflammation of the arachnoid can lead to a host of painful and debilitating symptoms. Chronic pain is common, including neuralgia . Numbness and tingling of the extremities is frequent in patients due to spinal cord involvement. Bowel, bladder, and sexual functioning can be affected if the lower part of the spinal cord is affected. While arachnoiditis has no consistent pattern of symptoms, it frequently affects the nerves that supply the legs and lower back. Many sufferers find themselves unable to sit for long or even short periods of time, often due to severe pain as well as efferent neurological symptoms, such as difficulties controlling limbs. This can be particularly problematic for those patients who exhibit difficulties standing or walking for protracted periods, as wheelchairs are not helpful for this ... more details
Infobox Anatomy Name PAGENAME Latin cisterna GraySubject 193 GrayPage 876 Image Gray768.png Caption Diagram showing the positions of the three principal subarachnoid cistern . Image2 Caption2 System MeshName MeshNumber DorlandsPre c 37 DorlandsSuf 12241802 In neuroanatomy, a cistern Latin box is any opening in the subarachnoid space of the brain created by a separation of the Meninges arachnoid and pia mater . These spaces are filled with cerebrospinal fluid . There are many cisterns in the brain with several especially large, notable ones each with their own name. Some major subarachnoid cisterns Cerebellomedullary cistern Cisterna magna the largest of the subarachnoid cisterns. Pontine cistern Prepontine cistern or cisterna pontis Interpeduncular cistern Cisterna interpeduncularis Superior cistern Quadrigeminal cistern or cistern of the great cerebral vein Ambient cistern Cisterna ambiens thin, sheet like extensions of the superior cistern that extend laterally about the midbrain, connecting it to the interpeduncular cistern. Ambient cistern may also refer to the combination of these extensions and the superior cistern. References Nolte, J 2002 The Human Brain, 5th edition. ISBN 0 323 01320 1, 87 neuroscience stub Meninges Category Meninges it Cisterna liquorale pt Cisterna neuroanatomia ru ... more details
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