Q. No.Which of the following hormones are secreted in women only during pregnancy?
| (a) | Relaxin | (b) | Oxytocin |
| (c) | hCG | (d) | hPL |
| (e) | Progesterone |
Choose the most appropriate answer from the options given below:
1. (c), (d) and (e) only2. (b) and (e) only
3. (b), (c) and (d) only
4. (a), (c) and (d) only
| Assertion (A): | Pregnancy is characterised by metabolic changes in the mother. |
| Reason (R): | During pregnancy the level of thyroxine is increased in the maternal blood. |
In the light of the above statements, choose the most appropriate answer from the options given below:
| 1. | Both (A) and (R) are correct and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are correct but (R) is not the correct explanation of (A). |
| 3. | (A) is correct but (R) is not correct. |
| 4. | (A) is not correct but (R) is correct. |
Which of the following secretes the hormone, relaxin, during the later phase of pregnancy?
1. Foetus
2. Uterus
3. Graafian follicle
4. Corpus luteum
Which of these is not an important component of initiation of parturition in humans?
1. Release of oxytocin
2. Release of prolactin
3. Increase in estrogen and progesterone ratio
4. Synthesis of prostaglandins
In human beings, at the end of 12 weeks (first trimester) of pregnancy, the following is observed:
1. Eyelids and eyelashes are formed
2. Most of the major organ systems are formed
3. The head is covered with fine hair
4. Movement of the fetus
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) |
Which one of the following is not the function of placenta?
| 1. | Secretes estrogen |
| 2. | Facilitates removal of carbon dioxide and waste material from embryo |
| 3. | Secretes oxytocin during parturition |
| 4. | Facilitates supply of oxygen and nutrients to embryo |
The signals for parturition originate from:
1. placenta only
2. placenta as well as developed foetus
3. oxytocin released from maternal pituitary
4. fully developed foetus only
The first movements of the foetus and the appearance of hair on its head are usually observed during which month of pregnancy?
1. Fourth month
2. Fifth month
3. Sixth month
4. Third month
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
© 2024 GoodEd Technologies Pvt. Ltd.