| posterior crus of stapes | The posterior of the two delicate limbs of the stapes that connect the head and base or footplate of the bone. Synonym: crus posterius stapedis, posterior limb of stapes. (05 Mar 2000) |
|---|---|
| crus | Synonym: leg. 2. Any anatomical structure resembling a leg; usually (in the plural) a pair of diverging bands or elongated masses. See: limb. Origin: L. (05 Mar 2000) |
| crus anterius capsulae internae | The portion of the internal capsule between the head of the caudate nucleus and the putamen; it lies anterior to the genu of the internal capsule. Synonym: crus anterius capsulae internae. (05 Mar 2000) |
| crus anterius stapedis | The anterior of the two delicate curving limbs of the stapes that pass from the head of the bone to the base or footplate. Synonym: crus anterius stapedis, anterior limb of stapes. (05 Mar 2000) |
| crus anthelicis | One of two ridges, inferior and superior, bounding the fossa triangularis, by which the antihelix begins at the upper part of the auricle. Synonym: crus anthelicis, leg of antihelix. (05 Mar 2000) |
| crus breve incudis | The short crus of incus; the process of the incus that fits into a depression (fossa incudis) in the epitympanic recess. Synonym: crus breve incudis. (05 Mar 2000) |
| crus cerebri | Specifically, the massive bundle of corticofugal nerve fibres passing longitudinally on the ventral surface of the midbrain on each side of the midline; it consists of fibres descending from the cortex to the tegmentum of the brainstem, pontine gray matter, and spinal cord. See: cerebral peduncle, basis pedunculi. (05 Mar 2000) |
| crus clitoridis | The continuation on each side of the corpus cavernosum of the clitoris which diverges from the body posteriorly and is attached to the pubic arch. Synonym: crus clitoridis. (05 Mar 2000) |
| crus corporis cavernosi penis | The posterior, tapering portion of the corpus cavernosum penis which diverges from its contralateral partner to be attached to the ischiopubic ramus. Synonym: crus penis, crus corporis cavernosi penis. (05 Mar 2000) |
| crus fornicis | That part of the fornix that rises in a forward curve behind the thalamus to continue forward as the body for fornix ventral to the corpus callosum. Synonym: crus of fornix, posterior pillar of fornix. (05 Mar 2000) |
| crus helicis | A transverse ridge continuing backward from the helix of the auricle, dividing the concha into an upper portion (cymba) and a lower portion (cavity of concha). Synonym: crus helicis, crista helicis, limb of helix. (05 Mar 2000) |
| crus I | The part of the superior surface of the cerebellar hemisphere lying rostral to the horizontal fissure, and adjoining the folium of the vermis. Synonym: lobulus semilunaris superior, anterior lunate lobule, crus I. (05 Mar 2000) |
| crus II | The part of the superior surface of the cerebellar hemisphere lying behind the horizontal fissure. Synonym: lobulus semilunaris inferior, crus II, posterior lunate lobule. (05 Mar 2000) |
| crus laterale | Limb or leg-like portion of a structure, farthest from midline. Synonym: crus laterale, lateral limb. (05 Mar 2000) |
| crus laterale anuli inguinalis superficialis | Portion of the external oblique aponeurosis which passes lateral to the superficial inguinal ring blending into the inguinal ligament and forming the lateral boundary of the ring. Synonym: crus laterale anuli inguinalis superficialis. (05 Mar 2000) |