Periaqueductal gray (PAG; also called the 'central gray') is the gray matter located around the cerebral aqueduct within the midbrain. It plays a role in the descending modulation of pain and in defensive behaviour. The ascending pain and temperature fibers of the spinothalamic tract also send information to the PAG via the spinomesencephalic tract. The spinomesencephalic tract is so-named because the fibers originate in the spine and terminate in the mesencephalon, another name for the midbrain, the part of the brain in which the PAG resides. [WP,unvetted]. [ http://en.wikipedia.org/wiki/Periaqueductal_gray http://sourceforge.net/p/obo/mouse-anatomy-requests/40/ ]

This is just here as a test because I lose it

Term information

database cross reference
Subsets

uberon_slim, efo_slim, vertebrate_core

latin term
griseum periventriculare mesencephali [ NeuroNames:510 ]

latin term
substantia grisea centralis mesencephali [ NeuroNames:510 ]

latin term
anulus aqueductus cerebri [ NeuroNames:510 ]

latin term
anulus aquaeductus [ NeuroNames:510 ]

latin term
griseum centrale mesencephali [ NeuroNames:510 ]

abbreviation
CGMB [ NIFSTD:NeuroNames_abbrevSource BIRNLEX:973 ]

definition

Periaqueductal gray (PAG; also called the 'central gray') is the gray matter located around the cerebral aqueduct within the midbrain. It plays a role in the descending modulation of pain and in defensive behaviour. The ascending pain and temperature fibers of the spinothalamic tract also send information to the PAG via the spinomesencephalic tract. The spinomesencephalic tract is so-named because the fibers originate in the spine and terminate in the mesencephalon, another name for the midbrain, the part of the brain in which the PAG resides. [WP,unvetted].

depicted by

http://upload.wikimedia.org/wikipedia/commons/d/da/Cn3nucleus.png

has broad synonym

CGMB

griseum centrale

substantia grisea centralis

has exact synonym

periaqueductal grey substance

periaqueductal grey

periaqueductal grey matter

midbrain periaqueductal grey

central (periaqueductal) gray

periaqueductal gray of tegmentum

periaqueductal gray matter

anulus of cerebral aqueduct

periaqueductal gray

has related synonym

griseum periventriculare mesencephali

griseum centrale mesencephali

central grey substance of midbrain

substantia grisea centralis mesencephali

central gray

central gray substance of the midbrain

periaqueductal gray, proper

central grey

s. grisea centralis

pAG

central gray of the midbrain

anulus aqueductus cerebri

anulus aquaeductus

periaquectuctal grey

id

UBERON:0003040