corpus cavernosum

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Related to corpus cavernosum: Corpus spongiosum


 [kor´pus] (pl. cor´pora) (L.)
corpus al´bicans white fibrous tissue that replaces the regressing corpus luteum in the human ovary in the latter half of pregnancy, or soon after ovulation when pregnancy does not supervene.
corpus amygdaloi´deum amygdaloid body.
cor´pora amyla´cea small hyaline masses of degenerate cells found in the prostate, neuroglia, and other sites.
corpus callo´sum an arched mass of white matter in the depths of the longitudinal fissure, made up of transverse fibers connecting the cerebral hemispheres.
corpus caverno´sum either of the two columns of erectile tissue forming the body of the penis or clitoris.
corpus fimbria´tum a band of white matter bordering the lateral edge of the lower cornu of the lateral ventricle of the brain.
corpus genicula´tum see geniculate bodies, lateral, and geniculate bodies, medial.
corpus hemorrha´gicum
1. an ovarian follicle containing blood.
2. a corpus luteum containing a blood clot.
3. a blood clot formed in the cavity left by rupture of a graafian follicle.
corpus lu´teum a yellow glandular mass in the ovary formed by an ovarian follicle that has matured and discharged its ovum; see also ovulation.
corpus mammilla´re mamillary body.
cor´pora quadrige´mina four rounded eminences on the posterior surface of the mesencephalon.
corpus spongio´sum pe´nis a column of erectile tissue forming the urethral surface of the penis, in which the urethra is found.
corpus ster´ni body of sternum.
corpus stria´tum a subcortical mass of gray matter and white matter in front of and lateral to the thalamus in each cerebral hemisphere.
corpus u´teri that part of the uterus above the isthmus and below the orifices of the fallopian tubes.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

corpus cavernosum

Either of two cylindrical columns of spongy tissue that run superolaterally to the corpus spongiosum over the length of the penis. Mechanical stimulation of the penis triggers the parasympathetic division of the autonomic nervous system with minimal input from the central nervous system, releasing acetylcholine from the sacral nerves, which in turn releases nitric oxide from the endothelial cells of the trabecular arteries, resulting in vasodilation and engorgement of the corpora cavernosa with blood and an erection. When the parasympathetic stimulation subsides, the corpora cavernosa return to a relaxed state.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

corpus cavernosum

one of a pair of laterally situated masses of erectile tissue in the mammalian penis which, together with the CORPUS SPONGIOSUM, causes the erection of the penis when filled with blood.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

Corpus cavernosum (plural, corpora cavernosa)

One of two rods of spongy tissue in the penis that become engorged with blood in order to produce an erection.
Mentioned in: Impotence
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Computed tomography-guided drainage of a corpus cavernosum abscess: a minimally invasive successful treatment.
Recent findings showed also that chronic ethanol consumption increases the expression of ET-1 and the contractile action of this peptide in the corpus cavernosum of rats.
ESWT Increases the Quantity of MSCs in the Corpus Cavernosum. After MSC intracavernous injection, we made a MSCT successively.
Gabouev et al., "Isolation of primary endothelial and stromal cell cultures of the corpus cavernosum penis for basic research and tissue engineering," European Urology, vol.
The corpus cavernosum was cleaned of the adjacent tissue and cut into longitudinal strips of 2 x 10 mm.
PDE5 inhibitors slow the degradation of cGMP by binding to the catalytic sites of PDE5, thus increasing the amount of cGMP in smooth muscle cells of the corpus cavernosum and in the walls of the penile arteries (Alberson et al., 2012).
Cumulative concentration response curves were established to investigate the contractile responses of the corpus cavernosum to the constrictor agonists phenylephrine (PE) and endothelin-1 (ET-1).
Saenz de Tejada, "PGE1 suppresses the induction of collagen synthesis by transforming growth factor-[beta]1 in human corpus cavernosum smooth muscle," Journal of Urology, vol.
Penil ultrasound revealed haematoma in the corpus cavernosum. The diagnosis of PF was established.
The major mechanism responsible for ED is an increase in the tone and/or contractility of the smooth muscle within the corpus cavernosum and penile arteries [3], which is mostly due to diminished production and function of nitric oxide (NO) and other vasoprotective factors, which is compounded by the exaggerated production of reactive oxygen species (ROS) and vasoconstrictors [4, 5].

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