Which of the following events is not associated with ovulation in human females?

1. Decrease in Oestradiol

2. Full development of Graafian follicle

3. Release of secondary oocyte

4. LH Surge

Which of the following layers in an antral follicle is acellular?

1. Granulosa

2. Theca interna

3. Stroma

4. Zona pellucida

The main function of mammalian corpus luteum is to produce:

1. Oestrogen only

2. progesterone

3. human chorionic gonadotropin

4. relaxin only

The secretory phase in the human menstrual cycle is also called:

About which day in a normal human menstrual cycle does rapid secretion of LH (popularly called LH-surge) normally occurs?
1. 11^th day 

2. 14^th day

3. 20^th day 

4. 5^th day