Norepinephrine:
a. is released by sympathetic fibers
b. is released by parasympathetic fibers
c. increases the heart rate
d. decreases blood pressure
Which of the above said statements are correct?
1. a and c 2. b and c
3. b and d 4. a and d

Subtopic:  Adrenal Medulla |
 62%
Level 2: 60%+
NEET - 2013
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NEET 2026 - Target Batch - Vital
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Assertion (A): GnRH stimulates release of FSH and LH.
Reason (R): The hypothalamus is called master of master endocrine glands.
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.
Subtopic:  Adenohypophysis & Hypothalamus |
 78%
Level 2: 60%+
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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital

Assertion (A): Our body secretes adrenaline in intense cold.
Reason (R): Adrenaline raises metabolic rate.
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.
Subtopic:  Adrenal Medulla |
 68%
Level 2: 60%+
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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital

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Assertion (A): Decreases secretion of growth hormone and is always available.
Reason (R): Deficiency of iodine results in the deficiency of thyroxine.
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.
Subtopic:  Adenohypophysis & Hypothalamus | Thyroid Gland Part I |
 75%
Level 2: 60%+
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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital

Assertion (A): Insulin is water soluble hormone.
Reason (R): Insulin is an example of proteinaceous hormones.
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.
Subtopic:  Pancreas |
 59%
Level 3: 35%-60%
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NEET 2026 - Target Batch - Vital
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Assertion (A): CRH stimulates ACTH.
Reason (R): ACTH controls secretion of glucocorticoids.
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.
Subtopic:  Adrenal Cortex: Cortisol |
 66%
Level 2: 60%+
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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital

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Assertion (A): The over secretion of growth hormone (GH) before puberty causes acromegaly.
Reason (R): The over secretion of GH after puberty causes gigantism.
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.
Subtopic:  Adenohypophysis & Hypothalamus | Human Growth Hormone |
 79%
Level 2: 60%+
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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital

Assertion (A): Growth hormone (GH) is an insulin antagonist.
Reason (R): GH stimulates hepatocytes to release glucose into the blood.
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.
Subtopic:  Human Growth Hormone | Pancreas |
Level 3: 35%-60%
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NEET 2026 - Target Batch - Vital
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Assertion (A): The reduced secretion of ADH due to the defective heredity and metabolism causes diabetes insipidus.
Reason (R): In diabetes insipidus an individual suffers from diuresis.
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.
Subtopic:  Prolactin & Posterior Pituitary |
 58%
Level 3: 35%-60%
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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital

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Assertion (A): Testes and ovaries perform dual functions.
Reason (R): Testes and ovaries are sex organs as well as endocrine glands.
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.
Subtopic:  Misc. Hormones |
 90%
Level 1: 80%+
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital