Corpus luteum secretes large amounts of:
1. | LH | 2. | FSH |
3. | Progesterone | 4. | Estrogen |
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The placenta is connected to the embryo through:
1. | Ligaments | 2. | Portal vein |
3. | Umbilical cord | 4. | Mesentery |
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Which of the following hormones is not secreted by the human placenta?
1. | hCG | 2. | hGH |
3. | hPL | 4. | Progesterone |
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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 |
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Which of the following is not produced in the woman only during pregnancy?
1. | hCG | 2. | hPL |
3. | Relaxin | 4. | Oxytocin |
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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
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What part of the early embryo differentiates into the three germ layers?
1. | The trophoblast cells | 2. | Inner cell mass |
3. | Both | 4. | None |
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