Menstrual Cycle

Q.

Which of the following comparisons between menstruation and pregnancy is incorrect?

1. Menstruation - fertilisation does not take place Pregnancy - fertilisation takes place

2. Menstruation - Endometrial lining is shed Pregnancy - Thick endometrium

3. Menstruation - Corpus Luteum non-ephemeral Pregnancy - Corpus luteum ephemeral

4. Menstruation - Drop in estrogen and progesterone Pregnancy - High HCG

5. Menstruation - Lasts around three to five days Pregnancy - Lasts for 9 months

Q.

Menstruation is a sign of

1. Pregnancy

2. Ovulation

3. Fertility

4. None of the above

Q. Secretory phase of human menstrual cycle is also called

1. Follicular phase and lasts for 13 days
2. Luteal phase and lasts for 6 days
3. Luteal phase and lasts for 13 days
4. Follicular phase and lasts for 6 days

Q. Secretory phase of human menstrual cycle is also called

1. Follicular phase and lasts for 13 days
2. Luteal phase and lasts for 6 days
3. Luteal phase and lasts for 13 days
4. Follicular phase and lasts for 6 days

Q. Menstrual flow occurs due to lack of:

1. Progesterone
2. FSH
3. Oxytocin
4. Vasopressin

Q. Which one of the following is the most likely root cause why menstruation is not taking place in regularly cycling human female?

1. Retention of well-developed corpus luteum
2. Fertilization of the ovum
3. Maintenance of the hypertrophical endometrial lining
4. Maintenance of high concentration of sex hormones in the blood stream

Q. Which of the following is the correct matching of the events occurring during menstrual cycle?

1. Proliferative phase $\times$ Rapid regeneration of myometrium and maturation of Graafian follicle
2. Menstruation $\times$ Breakdown of myometrium and ovum not fertilized
3. Ovulation $\times$ LH and FSH attain peak level and sharp fall in the secretion of progesterone
4. Development of corpus $\times$ Secretory phase and increased secretion of progesterone luteum

Q. Match the phase of the menstrual cycle with its characteristic feature.

1. Release of ovum
2. Endometrium is shed
3. Corpus luteum formed
4. Growth of follicles

Q. Some important events in the human female reproductive cycle are given below. Arrange the events in proper sequence.
I. Secretion of FSH
II. Growth of corpus luteum
III. Growth of the follicle and oogenesis
IV. Ovulation
V. Sudden increase in the levels of LH

1. III $\to$ I $\to$ IV $\to$ II $\to$ V
2. I $\to$ III $\to$ V $\to$ IV $\to$ II
3. I $\to$ IV $\to$ III $\to$ V $\to$ II
4. II $\to$ I $\to$ III $\to$ IV $\to$ V

Q. If mammalian ovum fails to get fertilised, which one of the following is unlikely?

1. Corpus luteum will disintegrate
2. Oestrogen secretion further decreases
3. Primary follicle starts developing
4. Progesterone secretion rapidly declines