Follicular atresia is

(1) Formation of corpus luteum

(2) Degeneration of folliciles 

(3) Formation of Graffian follicle

(4) Increase in number of follicles

The menstrual cycle begins with the casting off of

(1) Placenta

(2) Blood

(3) Endometrial lining along with blood vessels

(4) All the three

Graafian follicle of ovary secretes which hormone

1. Cortisone

2. Relaxin

3. Progesterone

4. None of these

Human milk differs from cow's milk in that it contains a

(1) Higher percentage of fat

(2) Higher percentage of carbohydrate

(3) Lower percentage of protein

(4) (2) and (3)

The substrate used for sperm metabolism is produced by the

1. prostate

2. seminal vesicle

3. Cowper's gland

4. testes

Which of the following hormones acts on the Sertoli cells to stimulate secretion of some factors which help in the process of spermiogenesis?

1. FSH

2. LH

3. Testosterone

4. GnRH

The developing oocyte divides and releases the first polar body in :

1. Primary follicle

2. Secondary follicle

3. Tertiary follicle

4. Graffian follicle

During parturition, the fetal ejection reflex triggers the release of:

1. An increasing amount of estrogen and a decreasing amount of progesterone from the placenta

2. A decreasing amount of estrogen and an increasing amount of progesterone from the placenta

3. Oxytocin from the maternal pituitary

4. GnRH from the fetal hypothalamus

Mature sperms in humans are stored in:

(1) Seminal vesicles

(2) Epididymis

(3) Vas deferens

(4) Rete testis

Menstruation is triggered by an abrupt decline in the amount of:

1. Estrogen

2. Progesterone

3. LH

4. FSH