| I: | In females, FSH initiates follicular growth. |
| II: | In males, FSH induces Sertoli cells to secrete certain factors. |
| 1. | Ovulation | 2. | Menstruation |
| 3. | Implantation | 4. | Parturition |
| 1. | GnRH, FSH, LH, estrogen, progesterone |
| 2. | CRH, ACTH, TSH, insulin, cortisol |
| 3. | TRH, FSH, LH, testosterone, inhibin |
| 4. | GnRH, prolactin, oxytocin, relaxin, hCG |
| 1. | Undergoes cyclic proliferation, secretion, and shedding under ovarian hormone influence |
| 2. | Provides structural support to the uterus and contracts during childbirth |
| 3. | Consists mainly of smooth muscle fibres arranged in longitudinal layers |
| 4. | Remains unchanged throughout the cycle to maintain uterine shape |
A biology student after studying about the different levels of hormones during the menstrual
cycle was comparing 2 subjects (Patients). A table was created after looking at the levels of
hormones A and B for Subject 1 and 2. Read the information in the table and answer the
question
| HORMONE A | HORMONE B | |
| Subject 1 | Shows a peak on the 14th Day of the menstrual cycle | Falls down during the luteal phase |
| Subject 2 | Shows a peak on the 14th Day of the menstrual cycle | The level is maintained high in the luteal phase |
Which structure in the ovary will remain functional in subject 2?
1. Corpus Luteum
2. Tertiary follicle
3. Graafian follicle
4. Primary follicle
| Statement I: | Degeneration of corpus luteum in the absence of fertilization is the cause for disintegration of endometrium. |
| Statement II: | Cyclic menstruation indicates normal reproductive phase in human females and extends between menarche and menopause. |
| Assertion(A): | A pregnant woman cannot concieve again during pregnancy. |
| Reason(R): | Corpus luteum secretes high level of progesterone and estrogen during pregnancy which inhibits the secretion of gonadotropins and thereby prevent ovulation. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Changes in the ovary and the uterus, during the menstrual cycle, are induced by the changes in the levels of secretion of:
| 1. | Ovarian hormones | 2. | Pituitary hormones |
| 3. | Both | 4. | None |