Which of the following hormones is responsible for both the milk ejection reflex and the foetal ejection reflex?

1. Estrogen 2. Prolactin
3. Oxytocin 4. Relaxin

Subtopic:  Prolactin & Posterior Pituitary |
 88%
From NCERT
NEET - 2019
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Identify A, B and C in the diagrammatic representation of the mechanism of hormone action.


Select the correct option from the following:

1. A = Steroid Hormone; B = Hormone receptor Complex; C = Protein
2. A = Protein Hormone; B = Receptor; C = Cyclic AMP
3. A = Steroid Hormone; B = Receptor; C = Second Messenger
4. A = Protein Hormone; B = Cyclic AMP; C = Hormone-receptor Complex
Subtopic:  Mechanism of Hormone Action |
 72%
From NCERT
NEET - 2019
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Artificial light, extended work-time and reduced sleep-time disrupt the activity of:

1. Thymus gland

2. Pineal gland

3. Adrenal gland

4. Posterior pituitary gland

Subtopic:  Pineal Gland |
 93%
From NCERT
NEET - 2019
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Which of the following conditions will stimulate parathyroid gland to release parathyroid hormone?

1. Fall in active Vitamin D levels

2. Fall in blood Ca+2 levels

3. Fall in bone Ca+2 levels

4. Rise in blood Ca+2 levels

Subtopic:  Parathyroid |
 80%
From NCERT
NEET - 2019
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Which hormone causes dilation of blood vessels, increased oxygen consumption, and glucogenesis?

1. ACTH

2. Insulin

3. Adrenalin

4. Glucagon

Subtopic:  Adrenal Medulla |
 55%
From NCERT
AIPMT - 2006
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A steroid hormone which regulates glucose metabolism is:

1. cortisol

2. corticosterone

3. 11-deoxycorticosterone

4. cortisone

Subtopic:  Adrenal Cortex: Cortisol |
 86%
From NCERT
AIPMT - 2006
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Feeling the tremors of an earthquake, a scared resident of the seventh floor of a multi-storey building starts climbing down the stairs rapidly. Which hormone initiated this act?

1. Thyroxine

2. Adrenaline

3. Glucagon

4. Gastrin

Subtopic:  Adrenal Medulla |
 95%
From NCERT
AIPMT - 2007
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The blood calcium level is lowered by the deficiency of:

1. parathormone
2. thyroxine
3. calcitonin
4. Both 1 and 3

Subtopic:  Parathyroid |
 56%
From NCERT
AIPMT - 2008
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Which one of the following pairs is incorrectly matched?

1. Glucagon- Beta cells(source)

2. Somatostatin- Delta cells(source)

3. Corpus luteum- Relaxin(secretion)

4. Insulin- Diabetes mellitus(disease)

Subtopic:  Pancreas: I | Pancreas |
 75%
From NCERT
AIPMT - 2010
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Injury to adrenal cortex is not likely to affect the secretion of which one of the following?

1. Aldosterone

2. Both androstenedione and dehydroepiandrosterone

3. Adrenalin

4. Cortisol

Subtopic:  Adrenal Medulla |
 63%
From NCERT
AIPMT - 2010
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