Terminology Service for NFDI4Health
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pia mater

Go to external page http://purl.obolibrary.org/obo/UBERON_0002361

The innermost layer of the leptomeninges, consisting of a delicate membrane closely covering the surface of the brain and spinal cord,and lying under the arachnoid membrane. The pia, unlike the arachnoid, extends into the sulci in gyrencephalic animals. [ ]

Term info

Label

pia mater

Synonyms
  • pia mater of neuraxis
  • pial membrane
database cross reference
Subsets

uberon_slim, pheno_slim

depicted by

http://upload.wikimedia.org/wikipedia/commons/6/65/Gray770.png, http://upload.wikimedia.org/wikipedia/commons/3/31/Gray770-en.svg

editor note

consider adding adjacency relationship to neuraxis (brain+spinal cord); however note that at this time the meninges may be considered part of the nervous system

external definition

delicate innermost layer of the meninges-the membranes surrounding the brain and spinal cord. The thin, mesh-like pia mater closely envelops the entire surface of the brain, running down into the fissures of the cortex. It joins with the ependyma which lines the ventricles to form choroid plexuses that produce cerebrospinal fluid. In the spinal cord, the pia mater attaches to the dura mater by the denticular ligaments through the arachnoid membrane. The pia mater is a neural crest derivative[Wikipedia:Pia_mater].

id

UBERON:0002361