retained testis

testis /tes·tis/ (tes´tis) pl. tes´tes   [L.] the male gonad; either of the paired egg-shaped glands normally situated in the scrotum, in which the spermatozoa develop. Specialized interstitial cells (Leydig cells) secrete testosterone.

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abdominal testis  an undescended testis in the abdominal cavity.

ectopic testis  one outside the normal pathway of descent.

obstructed testis  one whose normal descent is blocked, so that it goes into an inguinal pouch.

retained testis  undescended t.

retractile testis  one that can descend fully into the scrotum but then moves freely up into the inguinal canal.

undescended testis  one that has failed to descend into the scrotum, as in cryptorchidism.

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retained testis

n.

See undescended testis.

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testis

pl. testes [L.] the male gonad; either of the paired, egg-shaped glands normally situated in the scrotum; called also testicle. The testes produce the spermatozoa, the male reproductive cells, which are ejaculated into the female vagina during coitus, and the male sex hormone, testosterone, which is responsible for the secondary sex characters of the male.

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ectopic testis

the testis is in an abnormal position away from the normal descent pathway.

nonscrotal testis

includes ectopic and cryptorchid testis.

retained testis

see cryptorchid.

supernumerary testis

polyorchidism.

testis tubuli contorti

seminiferous tubule.

undescended testis

see cryptorchid. Called also retained testicle.