penis (redirected from Peniz)

penis /pe·nis/ (pe´nis) the male organ of urination and copulation.

Penis. (A), Median sagittal section; (B), transverse section.

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concealed penis  a small penis hidden by a skin abnormality or the suprapubic fat pad.

webbed penis  a penis that is enclosed by the skin of the scrotum, which extends onto its shaft.

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pe·nis (pns)

n. pl. pe·nis·es or pe·nes (-nz)

The male organ of copulation and of urinary excretion, formed by three columns of erectile tissue, two arranged laterally on the dorsum and one medianly below; the extremity is formed by an expansion of the corpus spongiosum, covered by a free fold of skin.

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penis

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.

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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.