The peak levels of LH and FSH are observed on day _____ of a typical menstrual cycle.
1. | 6 | 2. | 14 |
3. | 22 | 4. | 28 |
In the absence of fertilization, corpus luteum:
1. | Stops secreting progesterone but increases the secretion of estrogen |
2. | Stops secreting estrogen but increases the secretion of progesterone |
3. | Increases the secretion of both progesterone and estrogen |
4. | Degenerates |
What happens when a sperm enters the cytoplasm of the secondary oocyte?
1. Release of first polar body
2. Completion of meiosis II
3. Degeneration of polar bodies
4. Dissolution of zona pellucida
The ovaries are located:
1. | In a sac outside the body | 2. | In the lower abdomen |
3. | In the upper abdomen | 4. | In the thorax |
Corpus luteum is:
1. Ruptured Graafian follicle
2. Released ovum surrounded by cells
3. Developing follicle
4. Enzyme-secreting structure in the ovary
LH surge:
1. | is a dramatic sudden increase in the levels of LH during the early part of menstrual cycle and is responsible for ovulation |
2. | is a dramatic sudden decrease in the levels of LH during the early part of menstrual cycle and is responsible for ovulation |
3. | is a dramatic sudden decrease in the levels of LH during the mid-menstrual cycle and is responsible for ovulation |
4. | is a dramatic sudden increase in the levels of LH during the mid-menstrual cycle and is responsible for ovulation |
Corpus luteum secretes large amounts of:
1. | LH | 2. | FSH |
3. | Progesterone | 4. | Estrogen |
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 |
Zona pellucida is a membrane surrounding:
1. | Secondary oocyte | 2. | Secondary follicle |
3. | Corona Radiata | 4. | Trophoblast cells |
What ensures that only one sperm can fertilize the ovum?
1. Corona Radiata
2. Ground substance around ovum
3. Zona pellucida
4. Acrosome