Seminal vesicles

seminal vesicles Glands that contribute fructose to sperm. The fructose serves as an energy source. The structures that add fructose and hormones to semen. PICTURE ... Full article ...

seminal vesicles Apart of the male reproductive tract that stores sperm in invertebrates and produces semen in vertebrates. seminiferous tubules Highly coiled tubes in the testes in which sperm are produced.

Earthworms are hermaphroditic, having both testes with seminal vesicles, and ovaries with seminal receptacles. Mating involves the worms lying parallel to each other facing opposite directions and exchanging sperm.

Fluid is added to the sperm by the seminal vesicles, Cowper's glands, and the prostate gland. [View] These fluids provide a source of energy (fructose) and perhaps in other ways provide an optimum chemical environment for the sperm.

semen The thick, whitish secretion of the reproductive organs in the male; composed of sperm and secretions from the prostate, seminal vesicles, and various other glands and ducts.

The second category are the ejaculatory fluid producing glands which include the seminal vesicles, prostate, and the vas deferens.

Some 60% of the volume of ejaculate is produced by the seminal vesicles, and most of the remainder is generated by the prostate.

See also: Vesicle, Testes, Organ, Environment, Reproduction