NEET BIOLOGY

Detailed explanation-1: -Sperm production in the testes takes place in coiled structures called seminiferous tubules. Along the top of each testicle is the epididymis. This is a cordlike structure where the sperm mature and are stored.

Detailed explanation-2: -The testes are where sperm are manufactured in the scrotum. The epididymis is a tortuously coiled structure topping the testis, and it receives immature sperm from the testis and stores it for several days. When ejaculation occurs, sperm is forcefully expelled from the tail of the epididymis into the deferent duct.

Detailed explanation-3: -Sperm production takes place inside the seminiferous tubules, which is a convoluted cluster of tubes located inside the testes. Testosterone production occurs in cells surrounding the seminiferous tubules, called Leydig cells.

Detailed explanation-4: -During spermatogenesis, your testicles make several million sperm per day-about 1, 500 per second. By the end of a full sperm production cycle, you can regenerate up to 8 billion sperm. This may seem like overkill, but you release anywhere from 20 to 300 million sperm cells in a single milliliter of semen.

Detailed explanation-5: -When the testes are exposed to FSH from the pituitary, Sertoli cells within seminiferous tubules in the testes produce sperm through meiosis. Immature sperm leave the testes and enter the epididymis where they mature (see Figure 13.7 below).