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Q. No.To which diencephalon structure is the pituitary gland attached to by a stalk?
1.
Thalamus
2.
Hippocampus
3.
Hypothalamus
4.
Corpora quadrigemina
Subtopic: Adenohypophysis & Hypothalamus | Human Growth Hormone |
92%
From NCERT
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Neurohypophysis (pars nervosa):
1. Both I and II are correct
2. Both I and II are incorrect
3. I is correct, II is incorrect
4. I is incorrect, II is correct
| I: | is also known as posterior pituitary. |
| II: | stores and releases two hormones called oxytocin and vasopressin. |
2. Both I and II are incorrect
3. I is correct, II is incorrect
4. I is incorrect, II is correct
Subtopic: Adenohypophysis & Hypothalamus | Prolactin & Posterior Pituitary |
96%
From NCERT
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How many of the given statements are correct?
| I: | Prolactin regulates the growth of the mammary glands and formation of milk in them. |
| II: | TSH stimulates the synthesis and secretion of thyroid hormones from the thyroid gland. |
| III: | ACTH stimulates the synthesis and secretion of aminated hormones called catecholamines from the adrenal cortex. |
| IV: | LH and FSH stimulate growth of accessory sex organs and hence are called gonadotrophins. |
| 1. | 1 | 2. | 2 |
| 3. | 3 | 4. | 4 |
Subtopic: Adenohypophysis & Hypothalamus | Prolactin & Posterior Pituitary | Thyroid Gland Part I | Thyroid Gland Part II |
From NCERT
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Oxytocin:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | in females, stimulates a vigorous contraction of uterus at the time of child birth. |
| II: | is a steroidal hormone. |
| III: | causes milk ejection from the mammary gland. |
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Human Growth Hormone | Prolactin & Posterior Pituitary |
62%
From NCERT
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Consider the given two statements:
| Assertion (A): | An impairment affecting synthesis or release of ADH results in a diminished ability of the kidney to conserve water leading to water loss and dehydration. |
| Reason (R): | Vasopressin acts mainly at the kidney and stimulates resorption of water and electrolytes by the distal tubules. |
| 1. | (A) is True; (R) is False |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A) |
| 3. | Both (A) and (R) are True and (R) correctly explains (A) |
| 4. | (A) is False; (R) is True |
Subtopic: Adrenal Medulla | Adrenal Cortex: Aldosterone |
74%
From NCERT
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Pineal secretes a hormone called:
1. melanin, a derivative of tyrosine.
2. melatonin, a derivative of tryptophan
3. MSH, a peptide hormone
4. MDPA, a steroid
1. melanin, a derivative of tyrosine.
2. melatonin, a derivative of tryptophan
3. MSH, a peptide hormone
4. MDPA, a steroid
Subtopic: Pineal Gland |
83%
From NCERT
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Consider the given statements:
1. Statement I is incorrect; Statement II is correct
2. Statement I is correct; Statement II is incorrect
3. Statement I is correct; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
| Statement I: | Thyroid follicular cells synthesise three hormones: thyroxine, triiodothyronine and thyrocalcitonin. |
| Statement II: | Iodine is essential for the normal rate of hormone synthesis in the thyroid. |
2. Statement I is correct; Statement II is incorrect
3. Statement I is correct; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
Subtopic: Thyroid Gland Part I |
From NCERT
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How many of the given statements are correct:
| I: | Thyroid hormones play an important role in the regulation of the basal metabolic rate. |
| II: | Thyroid hormones are most important factors that affect the process of red blood cell formation. |
| III: | Thyroid hormones control the metabolism of carbohydrates but not of proteins and fats. |
| IV: | Maintenance of water and electrolyte balance is also influenced by thyroid hormones. |
| 1. | 1 | 2. | 2 |
| 3. | 3 | 4. | 4 |
Subtopic: Thyroid Gland Part I | Thyroid Gland Part II |
From NCERT
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The secretion of PTH is regulated by:
1. hypothalamic releasing and inhibiting hormones
2. pituitary tropin hormone
3. the circulating levels of calcium ions
4. thyrocalcitonin
1. hypothalamic releasing and inhibiting hormones
2. pituitary tropin hormone
3. the circulating levels of calcium ions
4. thyrocalcitonin
Subtopic: Parathyroid |
78%
From NCERT
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Consider the given two statements:
| Assertion (A): | The immune responses of old persons become weak. |
| Reason (R): | Thymus is degenerated in old individuals resulting in a decreased production of thymosins. |
| 1. | (A) is True but (R) is False. |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 4. | (A) is False but (R) is True. |
Subtopic: Thymus |
94%
From NCERT
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