periaqueductal gray

(redirected from Central gray matter)

periaqueductal gray

a core of gray matter nervous tissue surrounding the cerebral aqueduct in the midbrain.
References in periodicals archive ?
It is probably a combination of factors, including cerebral microvascular anatomy and direct toxic effects of methanol metabolites, that causes the characteristic distribution of pathologic findings, including severe alterations of subcortical white matter and central gray matter alteration with sparing of peripheral gray matter9.
Typically, after a moderately severe trauma, secondary injury begins within 30 minutes with hemorrhage or bleeding in the central gray matter of the spinal cord.

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