Corpus luteum secretes large amounts of:
1. | LH | 2. | FSH |
3. | Progesterone | 4. | Estrogen |
The placenta is connected to the embryo through:
1. | Ligaments | 2. | Portal vein |
3. | Umbilical cord | 4. | Mesentery |
Which of the following hormones is not secreted by the human placenta?
1. | hCG | 2. | hGH |
3. | hPL | 4. | Progesterone |
Consider the two statements:
I: | Presence of HCG in the urine is a reliable indicator of pregnancy in a female. |
II: | HCG promotes the maintenance of the corpus luteum during the beginning of the pregnancy. |
1. Both I and II are correct and II explains I.
2. Both I and II are correct but II does not explain I.
3. Only I is correct.
4. Both I and II are incorrect.
Assertion (A): | Progesterone is sometimes called the "hormone of pregnancy". |
Reason (R): | It is secreted in large amounts first by corpus luteum and later by placenta during pregnancy. |
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. |
I: | Umbilical cord consists of two umbilical veins and one umbilical artery. |
II: | Yolk sac is the site of earliest erythropoiesis during foetal life. |
1. | Only I | 2. | Only II |
3. | Both I and II | 4. | Neither I nor II |
1. | The placenta | 2. | The fetus |
3. | Maternal ovary | 4. | Maternal pituitary |
Which of the following is not produced in the woman only during pregnancy?
1. | hCG | 2. | hPL |
3. | Relaxin | 4. | Oxytocin |
During pregnancy the levels of thyroxin:
1. Increase several folds in maternal blood
2. Increases several folds in fetal blood
3. Decreases several folds in maternal blood
4. Decreases several folds in fetal blood
What part of the early embryo differentiates into the three germ layers?
1. | The trophoblast cells | 2. | Inner cell mass |
3. | Both | 4. | None |