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Crus

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Definition

noun, plural: crura

(anatomy) Lower leg; a bodily part likened to a leg or pair of legs

(taxonomy) A subgenus of the genus Metopochetus


crural

Relating to the leg or thigh, or to any crus


Supplement

In anatomy, the term crus refers to the lower leg, particularly the leg from the knee to the ankle. The term may also pertain to any anatomical structure that is leg-shaped, such as the following terms:

  • crus of cerebrum (i.e. the massive bundle of corticofugal nerve fibres passing longitudinally on the ventral surface of the midbrain on each side of the midline, and consists of fibres descending from the cortex to the tegmentum of the brainstem, pontine gray matter, and spinal cord)
  • crus of clitoris (i.e. 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)
  • crus of fornix (i.e. 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)
  • crus of penis (i.e. the posterior, tapering portion of the corpus cavernosum penis which diverges from its contralateral partner to be attached to the ischiopubic ramus)

The plural form, crura, may also pertain to a pair of diverging bands or elongated masses.

In taxonomy, Crus is a subgenus of the genus Metopochetus (stilt-legged fly).


Synonym(s):

  • leg

See also:

Related term(s):

Mentioned in: