Q. No.About which day in a normal human menstrual cycle does rapid secretion of LH (popularly called LH-surge) normally occurs?
1. 11th day
2. 14th day
3. 20th day
4. 5th day
1. 11th day
What happens during fertilisation in humans after many sperms reach close to the ovum?
| 1. | Only two sperms nearest the ovum penetrate zona pellucida |
| 2. | Secretions of acrosome help one sperm enter the cytoplasm of the ovum through zona pellucida |
| 3. | All sperms except the one nearest to the ovum lose their tails |
| 4. | Cells of corona radiata trap all the sperms except one |
Signals from fully developed foetus and placenta ultimately lead to parturition which requires the release of:
| 1. | Oxytocin from maternal pituitary |
| 2. | Oxytocin from foetal pituitary |
| 3. | Relaxin from the placenta |
| 4. | Estrogen from placenta |
Secretions from which one of the following are rich in fructose, calcium and some enzymes:
1. Liver
2. Pancreas
3. Salivary glands
4. Male accessory glands
Identify the human development stage shown below as well as the related right place of its occurrence in a normal pregnant woman, and select the right option for the two together:
| Developmental stage | Site of occurrence | |
| 1. | Blastula | End part of fallopian tube |
| 2. | Blastocyst | Uterine wall |
| 3. | 8-celled morula | Starting point of fallopian tube |
| 4. | Late morula | Middle part of fallopian tube |
Ovulation in the human female normally takes place during which phase of the menstrual cycle:
1. Just before the end of the secretory cycle.
2. At the beginning of the proliferative phase.
3. At the end of the proliferative phase.
4. At the mid-secretory phase.
After ovulation, follicles convert into:
1. Corpus luteum
2. Corpus albicans
3. Corpus cavernosa
4. Corpus callosum
Which set is similar:
1. Corpus luteum – Graafian follicles
2. Sebum-sweat
3. Bundle of his – Pacemaker
4. Vita - Niacin
Match the following columns and select the correct option:
| Column-I | Column-II | ||
| (a) | Ovary | (i) | Human chorionic gonadotropin |
| (b) | Placenta | (ii) | Estrogen & Progesterone |
| (c) | Corpus luteum | (iii) | Androgens |
| (d) | Leydig cells | (iv) | Progesterone only |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iv) | (iii) | (ii) | (i) |
| 2. | (i) | (ii) | (iii) | (iv) |
| 3. | (i) | (iii) | (ii) | (iv) |
| 4. | (ii) | (i) | (iv) | (iii) |
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