loading...| Preferred Name | arachnoid villus | |
| Synonyms |
glandulæ pacchioni arachnoid granulations arachnoid villus pacchioni's granulations granulationes arachnoideales arachnoid villi pacchionian bodies glandulae pacchioni pacchionian glands paccini's granulation arachnoidal granulations |
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| Definitions |
Small protrusions of the arachnoid mater into vascular sinuses, acting as one-way pressure-sensitive valves. |
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| ID |
http://purl.obolibrary.org/obo/UBERON_0013153 |
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| database_cross_reference |
UMLS:C0228130 NCIT:C32137 Wikipedia:Arachnoid_granulation FMA:83980 |
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| definition |
Small protrusions of the arachnoid mater into vascular sinuses, acting as one-way pressure-sensitive valves. |
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| external_definition |
Arachnoid granulations (or arachnoid villi) are small protrusions of the 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 brain, 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 skull). They are, however, present along other dural sinuses as well. Smaller granulations are called villi, large calcified ones are referred to as pacchionian bodies[Wikipedia:Arachnoid_granulation]. |
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| has_obo_namespace |
uberon |
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| has_related_synonym |
glandulæ pacchioni arachnoid granulations arachnoid villus pacchioni's granulations granulationes arachnoideales arachnoid villi pacchionian bodies glandulae pacchioni pacchionian glands paccini's granulation arachnoidal granulations |
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| id |
UBERON:0013153 |
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| label |
arachnoid villus |
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| notation |
UBERON:0013153 |
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| part_of | ||
| prefLabel |
arachnoid villus |
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| treeView | ||
| subClassOf |