The first menstruation begins at puberty and is called as:
1. | Menarche | 2. | Menopause |
3. | Thelarche | 4. | Pubarche |
1. | Menstrual → Follicular → Secretory → Ovulatory |
2. | Menstrual → Follicular → Ovulatory → Secretory |
3. | Ovulatory → Follicular → Secretory → Menstrual |
4. | Menstrual → Secretory → Follicular → Ovulatory |
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 is:
1. Ruptured Graafian follicle
2. Released ovum surrounded by cells
3. Developing follicle
4. Enzyme-secreting structure in the ovary
Corpus luteum secretes large amounts of:
1. | LH | 2. | FSH |
3. | Progesterone | 4. | Estrogen |
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 |
The cessation of menstrual cycles is called as:
1. | Menarche | 2. | Thelarche |
3. | Pubarche | 4. | Menopause |
What maintains the corpus luteum after fertilization?
1. | release of HCG by the trophoblast to maintain the corpus luteum. |
2. | production of LH by the maternal pituitary. |
3. | maintenance of the corpus luteum by prolactin. |
4. | production of estrogen by the adenohypophysis. |
The direct cause of ovulation during the menstrual cycle is:
1. | A sharp fall in the levels of estrogen |
2. | A dramatic rise in the secretion of FSH |
3. | The beginning of the secretion of progesterone |
4. | A surge in the secretion of LH |