Human Reproduction

Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below:

1. Statement I is incorrect but Statement II is correct
2. Both Statement I and Statement II are correct
3. Both Statement I and Statement II are incorrect
4. Statement I is correct but Statement II is incorrect

The first menstruation is called :

1. Diapause
2. Ovulation
3. Menopause
4. Menarche

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. In the light of the above statements, choose the most appropriate answer from the options given below.

1. A is correct but R is not correct.
2. A is not correct but R is correct.
3. Both A and R are correct and R is the correct explanation of A.
4. Both A and R are correct but R is NOT the correct explanation of A.

Which of the following statements are correct regarding female reproductive cycle? Choose the most appropriate answer from the options given below:

1. A and B only
2. A, B and C only
3. A, C and D only
4. A and D only

Which of the following hormone levels will cause release of ovum (ovulation) from the Graafian follicle?

1. Low concentration of FSH
2. High concentration of Progesterone
3. Low concentration of LH
4. High concentration of Estrogen

Match the items given in column I with those in column II and select the correct option given below.

1. (a)-(i), (b)-(ii), (c)-(iii)
2. (a)-(i), (b)-(iii), (c)-(ii)
3. (a)-(ii), (b)-(iii), (c)-(i)
4. (a)-(iii), (b)-(i), (c)-(ii)

A temporary endocrine gland in the human body is

1. corpus cardiacum
2. corpus luteum
3. corpus allatum
4. pineal gland.

Changes in GnRH pulse frequency in females is controlled by circulating levels of

1. progesterone only
2. progesterone and inhibin
3. estrogen and progesterone
4. estrogen and inhibin.

Select the incorrect statement.

1. LH and FSH decrease gradually during the follicular phase.
2. LH triggers secretion of androgen from the Leydig cells.
3. FSH stimulates the Sertoli cells which help in spermiogenesis.
4. LH triggers ovulation in ovary.

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

1. Release of secondary oocyte
2. LH surge
3. Decrease in estradiol
4. Full development of Graafian follicle

The main function of mammalian corpus luteum is to produce

1. estrogen only
2. progesterone
3. human chorionic gonadotropin
4. relaxin only

Menstrual flow occurs due to lack of :

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

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

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

About which day in a normal human menstrual cycle does rapid secretion of LH (popularly called LH-surge) normally occur?

1. 11th day
2. 14th day
3. 20th day
4. 5th day

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

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

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. Maintenance of high concentration of sex hormones in the blood stream
3. Maintenance of the hypertrophical endometrial lining
4. Fertilisation of the ovum

Which one of the following statements is incorrect about menstruation?

1. The beginning of the cycle of menstruation is called menarche
2. At menopause in the female, there is especially abrupt increase in gonadotropic hormones
3. The menstrual fluid can easily clot
4. During normal menstruation about 40 ml blood is lost

Which part of ovary in mammals acts as an endocrine gland after ovulation?

1. Stroma
2. Vitelline membrane
3. Germinal epithelium
4. Graafian follicle

Withdrawal of which of the following hormones is the immediate cause of menstruation?

1. Progesterone
2. FSH
3. FSH-RH
4. Estrogen

If mammalian ovum fails to get fertilized, which one of the following is unlikely?

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

Ovulation in the human female normally takes place during the menstrual cycle

1. At the beginning of the proliferative phase
2. At the mid secretory phase
3. Just before the end of the secretory cycle
4. At the end of the proliferative phase

Mainly which type of hormones control the menstrual cycle in human beings?

1. FSH
2. LH
3. FSH, LH, estrogen
4. progesterone

Which set is similar?

1. Corpus luteum – Graafian follicles
2. Sebum – Sweat
3. Bundle of His – Pacemaker
4. Vitamin B7 – Niacin

Which set is similar?

1. Vitamin B7 – Niacin
2. Sebum – Sweat
3. Corpus luteum – Graafian follicles
4. Bundle of His – Pacemaker