The correct sequence of the various phases of a typical menstrual cycle is:

1. Menstrual → Follicular → secretory → Ovulatory

2. Menstrual → Follicular → Ovulatory → secretory

3. Ovulatory → Follicular → secretory → Menstrual

4. Menstrual → secretory → Follicular → Ovulatory

The menstrual cycle begins with the casting off of

(1) Placenta

(2) Blood

(3) Endometrial lining along with blood vessels

(4) All the three

Which one of the following is the most likely reason of not occuring regular menstruation cycle in females ?

1. Fertilisation of the ovum

2. Maintainance of the hypertrophical endometrial lining

3. Maintainance of high concentration of sex-hormones in the blood stream

4. Retention of well-developed corpus luteuin

In human females menstrual cycle is repeated is after around

On first day of standard cycle, which pituitary hormone is more in amount?