Progesterone and Its Functions

Q.

Which of the following hormones helps in the contraction of the uterus during childbirth?

1. Glucocorticoid

2. Oxytocin

3. ADH Androgen

Q. Progesterone is

1. an enzyme for digesting proteins.
2. a hormone to initiate uterine contraction.
3. an amino acid which may be the cause of alkaptonuria.
4. a hormone concerned with the maintenance of pregnancy.

Q. Which of the following statements is incorrect about gonads.

1. 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.
2. After ovulation, the ruptured ovarian follicle is converted to a structure called corpus luteum, which secretes mainly estrogen.
3. Androgens regulate the development, maturation and functions of the male accessory sex organs like epididymis, vas deferens, seminal vesicles, prostate gland, urethra etc.
4. Progesterone supports pregnancy and acts on the mammary glands and stimulates the formation of alveoli and milk secretion.

Q.

Secretion of progesterone by corpus luteum is initiated by

1. LH

2. Testosterone

3. Thyroxine

4. MSH