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Male Reproductive System

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Male Reproductive System - Lesson Summary

It is located in the pelvic region. It consists of the testes, accessory ducts, accessory glands and external genitalia.  The accessory ducts include the rete testes, vasa efferentia, epididymis and vas deferens. The accessory glands include a pair of seminal vesicles, a prostate and a pair of bulbourethral glands.  

The external genitalia include the penis. It is a copulatory organ. The testes are covered by a sac-like protuberance of skin and muscles, called the scrotum. The scrotum lies between the penis and anus. The testes need to be at a temperature 2 to 2.5 degrees less than the body temperature, to produce sperms. Hence, the scrotum is outside the body and has a temperature lower than the body. Testis is surrounded by a tough connective tissue capsule called tunica albuginea. The lining of each seminiferous tubule is called germinal epithelium and it contains male germ cells known as spermatogonia and sertoli cells. Sertoli cells provide nutrition to the germ cells. Rete testis, vasa efferentia, epididymis and vas deferens are the male accessory ducts.

Epididymis is a long, narrow highly coiled tubule present along the posterior surface of testis. It is divided into three parts: anterior - caput epididymis, middle - corpus epididymis and posterior - cauda epididymis. Epididymis stores the sperm temporarily and nourishes them.

The male accessory glands include a pair of seminal vesicles, a prostate and a pair of bulbourethral glands. The external genitalia include penis. It is a copulatory organ. The tip of penis, covered by prepuce, is called glans penis. The penis, urethra, vas deferens and Cowper's gland together help in copulation and in the deposition of sperm within the female.

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