Problem 8 - Biology: The Dynamic Science

Question

During spermatogenesis in mammals, sperm travels from the: Sertoli cells past the epididymis and urethra, through the vas deferens to the prepuce. b. seminal vesicles past the prostate gland, through the glans and prepuce to the bulbourethral glands. c. vestibular glands past the Leydig cells, through the accessory glands and epididymis to the vas deferens. d. labia past the bulbourethral glands, through the vas deferens and urethra to the epididymis. e. seminiferous tubules past the Leydig cells, through the epididymis and vas deferens to the urethra.

Step-by-Step Solution

Answer

The correct path of sperm during spermatogenesis in mammals is from the seminiferous tubules past the Leydig cells, through the epididymis and vas deferens to the urethra. Hence, the correct option is (e).

Step 1: Identify the Correct Path

Spermatogenesis is the process by which mature sperm cells are produced from immature germ cells. This process begins in the seminiferous tubules located in the testes, where the germ cells reside. These cells develop into spermatozoa (sperm cells), which are then released into the lumen of the seminiferous tubules. Following their release, the sperm travels past the Leydig cells, which are also located in the testes and involved in the production of testosterone.

Step 2: Continue Tracing the Path

The sperm then move to the epididymis, a long, coiled tube that provides a site for sperm maturation and storage. Following the epididymis, the sperm travel through the vas deferens, a duct that transports mature sperm to the urethra.

Step 3: Complete the Path

The sperm ultimately exit the body through the urethra, which is the final part of the path during ejaculation. The urethra is the tube that carries urine from the bladder, as well as semen, to the outside of the body.

Step 4: Match the Path with the Options

By matching the correct path with the options provided in the exercise, it can be concluded that the sperm travels from the seminiferous tubules, past the Leydig cells, through the epididymis and vas deferens to the urethra.