corpus cavernosum penis

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cor·pus ca·ver·no·sum pe·nis

one of two parallel columns of erectile tissue forming the dorsal part of the body of the penis; they are separated posteriorly, forming the crura of the penis.

cor·pus ca·ver·no·sum pe·nis

(kōr'pŭs ka-vĕr-nō'sŭm pē'nis) [TA]
One of two parallel columns of erectile tissue forming the dorsal part of the body of the penis; they are separated posteriorly, forming the crura of the penis.

corpus cavernosum penis

One of the two columns of erectile tissue on the dorsum of the penis.
See also: corpus


pl. corpora [L.] body.

accessory corpus lutea
the corpora lutea which develop during early pregnancy in the mare and which follow the subsidence of the first corpus luteum.
corpus albicans, corpora albicantia
white fibrous tissue that replaces the regressing corpus luteum in the ovary in the latter half of pregnancy.
corpus amygdaloideum
a small mass of subcortical gray matter within the tip of the temporal lobe, anterior to the temporal horn of the lateral ventricle of the brain; it is part of the limbic system.
corpus amylacea
small hyaline masses of degenerate cells found in the prostate, thyroid, neuroglia and milk where they may be sufficient in a cow to block the teat sinus. They are formed by stasis of milk flow in a duct and inspissation of the fluids. Subsequently they may become detached and find their way to the teat.
corpus atreticum
scar in the ovary produced by atresia of a follicle when late in its development.
corpus callosum
an arched mass of white matter in the depths of the longitudinal fissure of the brain, and made up of transverse fibers connecting the cerebral hemispheres.
corpus callosum agenesis
all or part of the corpus may be absent and there may be additional associated defects.
corpus cavernosum clitoridis
one of the pair of erectile bodies of the clitoris.
corpus cavernosum penis
either of the two columns of erectile tissue forming the body of the penis or clitoris. See also corpus cavernosum penis.
corpus cavernosum penis rupture
common in bulls occurring during mating; commonly at the distal bend of the sigmoid flexure; result in hematoma and subsequent adhesions with inability to protrude the penis properly or angulation of the penis.
corpus cavernosum urethrae
see corpus spongiosum penis.
corpus fimbriatum
a band of white matter bordering the lateral edge of the temporal cornu of the lateral ventricle of the brain.
corpus geniculatum
see geniculate body lateral, and geniculate body medial.
corpus hemorrhagicum
1. an ovarian follicle, especially one freshly ruptured, containing blood.
2. a corpus luteum containing a blood clot.
corpus luteum
a progesterone-secreting yellow glandular mass in the ovary formed from the wall of an ovarian follicle that has matured and discharged its ovum. See also ovulation. In most animals that do not conceive the corpus luteum regresses quickly and a new follicle develops. The corpus luteum may be retained when there is uterine pathology which mimics pregnancy; no new follicle develops and the cow fails to come into heat. Called also retained corpus luteum. A similar clinical picture is observed with cystic corpora lutea.
corpus spongiosum penis
see corpus spongiosum penis.
corpus striatum
a subcortical mass of gray and white substance in front of and lateral to the thalamus in each cerebral hemisphere.


the external male organ of urination and copulation. Its structure varies a great deal between the species. In carnivores and horses the bulk of the organ is erectile tissue; in cats and dogs there is a bone included in the glans. In cats the penis is directed backwards (retromingent). In ruminants and pigs the bulk of the penis is connective tissue and the organ is long and firm and has a large sigmoid flexure which disappears when the penis is in the erect state. In rams and goat bucks the penile urethra is continued beyond the glans as the urethral process. See also penile.

corkscrew penis
see corkscrew penis.
corpus cavernosum penis
one of the two bodies that make up the dorsal compartment of erectile tissue, grooved below to carry the corpus spongiosum penis (syn. corpus cavernosum urethrae). It arises from each side of the ischial arch as the crus penis and at its anterior end is enclosed by the glans which is an extension of the corpus spongiosum.
corpus spongiosum penis
a column of erectile tissue around the urethra of the penis and extending into the glans penis.
short penis
an uncommon, possibly inherited, defect in some breeds of cattle.
supernumerary penis
a rare deformity, usually ectopic.
penis urethral process detached
the free end of the penis has a bifid structure.
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