Tightly coiled tubules where sperm mature

Умение удовлетворить нескольких ребят сразу это главное достоинство таких красоток, благодаря которому они завоевывают множество парней. I stared at her, she was possessed to fuck, like a wild animal, we both went bazerk. - Да-да, я понимаю. As he pushed his dick into her bloody cavernous wound, he came. Эмилия Владимировна тихо простонала. We were passionately kissing, our tongues in each others mouths.

Sperm are conveyed from the testis along some 20 ductules, or small ducts, which pierce the fibrous…. Within the walls of the tubules, also, are many randomly scattered cells, called Sertoli cells, that function to support and nourish the immature sperm cells by giving them nutrients and blood products. During ejaculation , sperm are propelled through the ductuli efferentes and ductus epididymidis in two ways. Email address. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. The epididymis receives sperm from the tubules in the mediastinum testis, the region in the testis in which all its sperm-producing tubules converge and empty. This duct is also extremely coiled, being about 4 to 5 m 13 to 16 feet long when stretched out.

The tubule walls consist of a multilayered germinal epithelium containing spermatogenic cells and Sertoli…. Each epididymis has three regions, called, respectively, the head, body, and tail. Learn More in these related Britannica articles:. First, the muscle tissue, by contracting, narrows the ducts, propelling the sperm.