Which of the following secretes the hormone, relaxin, during the later phase of pregnancy?

1. Foetus 

2. Uterus

3. Graafian follicle

4. Corpus luteum

Which of these is not an important component of initiation of parturition in humans? 

1. Release of oxytocin

2. Release of prolactin

3. Increase in estrogen and progesterone ratio

4. Synthesis of prostaglandins

Receptors for sperm binding in mammals are present on:

Which set is similar:
1.  Corpus luteum – Graafian follicles
2.  Sebum-sweat
3.  Bundle of his – Pacemaker
4.  Vita $B_7$ - Niacin

Mainly which hormones control the menstrual cycle in human beings:

1. FSH

2. LH

3. FSH, LH, Estrogen

4. Progesterone

Ovulation in the human female normally takes place during which phase of the menstrual cycle:

1. Just before the end of the secretory cycle.

2. At the beginning of the proliferative phase.

3. At the end of the proliferative phase.

4. At the mid-secretory phase.

What happens during fertilisation in humans after many sperms reach close to the ovum?

Secretions from which one of the following are rich in fructose, calcium and some enzymes:

1. Liver
2. Pancreas
3. Salivary glands
4. Male accessory glands

In a human female, the blastocyst:
 

Identify the human development stage shown below as well as the related right place of its occurrence in a normal pregnant woman, and select the right option for the two together: