crus cerebri

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crus

 [krus] (pl. cru´ra) (L.)
1. leg (def. 1).
2. a leglike part.
crus ce´rebri basis pedunculi cerebri.
crus of clitoris the continuation of the corpus cavernosum of the clitoris, diverging posteriorly to be attached to the pubic arch.
crura of diaphragm two fibroelastic bands that arise from the lumbar vertebrae and insert into the central tendon of the diaphragm.
crura of fornix two flattened bands of white matter that unite to form the body of the fornix of the cerebrum.
crus of penis the continuation of each corpus cavernosum of the penis, diverging posteriorly to be attached to the pubic arch.

crus ce·re·bri

[TA]
specifically, the massive bundle of corticofugal nerve fibers passing longitudinally on the ventral surface of the midbrain on each side of the midline; it consists of fibers descending from the cortex to the tegmentum of the brainstem, pontine gray matter, and spinal cord.
See also: cerebral peduncle, basis pedunculi.

crus cerebri

[ser′əbrī, -brē]
Etymology: L, crus + cerebrum, brain
either of the two cerebral peduncles, composed of the descending fiber tracts passing from the cerebral cortex to form the longitudinal fascicles of the pons. Also called basis pedunculi cerebri.

crus ce·re·bri

(krūs sĕr'e-brī) [TA]
Specifically, the massive bundle of corticofugal nerve fibers passing longitudinally on the ventral surface of the midbrain on each side of the midline. It consists of fibers descending from the cortex to the tegmentum of the brainstem, pontine gray matter, and spinal cord.
See also: cerebral peduncle

crus cerebri

large bundles of nerve fibres, to either side of the midline, passing longitudinally over ventral surface of midbrain

crus

pl. crura [L.]
1. shaped like the human leg.
2. a leglike part. Called also branch, e.g. the branches or crura of the atrioventricular bundle.

crus cerebri
the ventral part of the cerebral peduncles comprising fiber tracts descending from the cerebral cortex to form the longitudinal fascicles of the pons.
clitoridal crus
the continuation of the corpora cavernosa of the clitoris, diverging posteriorly to be attached to the sciatic arch.
diaphragmatic crus
two fibromuscular bands that arise from the lumbar vertebrae and insert into the central tendon of the diaphragm.
fornical crus
two flattened bands of white matter that unite to form the body of the fornix of the cerebrum.
penile crus
the continuation of each corpus cavernosum of the penis, diverging caudally to be attached to the sciatic arch.