Question

explain the male reproductive system

Answer 1

• Human male reproductive system consists of testis as a primary organ and many accessory organs.
• The primary sex organ is testis. There are two testes situated in a pouch outside the abdominal cavity which is called scrotum. The scrotum maintains the optimum temperature for sperm development.
• Each testis is an oval structure that is covered by a dense covering and contains about 250 compartments inside which are called testicular lobules. Each lobule contains 1-3 seminiferous tubules which consist of male germ cells and the nourishing Sertoli cells.
• The space outside the seminiferous tubules is called interstitial space and contains interstitial or Leydig cells (which secrete male hormones) and blood vessels.
• The accessory ducts include rete testis, vasa efferentia, epididymis, and vas deferens.
• The seminiferous tubules open in rete testis which is connected to vasa efferentia, which then open in the epididymis.
• Epididymis is located on posterior side of each testis and open in the vas deferens which opens into the urethra. Duct of another male accessory organ, seminal vesicles open in the vas deferens before it joins the urethra. The vas deferens transport the sperm from testis to the ejaculatory duct through the urethra.
• Other male accessory glands than the seminal vesicles that contribute to the semen include, a prostate and two bulbourethral glands. They all open in the vas deferens. Secretions of these glands nourish and protect sperms, and lubricate the penis etc.