Question

Which of the following statements is incorrect about gonads.

• A. The Leydig cells or interstitial cells, which are present in the intertubular spaces in the testis, produce a group of hormones called androgens, mainly testosterone.
• B. After ovulation, the ruptured ovarian follicle is converted to a structure called corpus luteum, which secretes mainly estrogen.
• C. Androgens regulate the development, maturation and functions of the male accessory sex organs like epididymis, vas deferens, seminal vesicles, prostate gland, urethra etc.
• D. Progesterone supports pregnancy and acts on the mammary glands and stimulates the formation of alveoli and milk secretion.

Answer 1

The correct option is B After ovulation, the ruptured ovarian follicle is converted to a structure called corpus luteum, which secretes mainly estrogen.

Gonads are the reproductive structures that produce the reproductive cells, sperms and ova. Testes and ovaries are the gonads in male and female reproductive systems, respectively.

The release of the egg by the ovary is called ovulation. After ovulation, the ruptured ovarian follicle is converted to a structure called the corpus luteum, which secretes mainly progesterone. Progesterone prepares the uterine lining for pregnancy, supports pregnancy, and stimulates the formation of the milk-storing tissues in the breasts and milk secretion.

Estrogen is produced by the follicular cells both before and after ovulation, but there is more progesterone secreted than estrogen after ovulation.

The testis is composed of seminiferous tubules. The Leydig cells or interstitial cells, which are present in the intertubular spaces, produce a group of hormones called androgens, mainly testosterone. Androgens are responsible for secondary sexual characters in males, stimulate spermatogenesis, and also stimulate the development of male accessory sex organs.