JGA is a special sensitive region formed by cellular modifications in the:

1. DCT and the afferent arteriole at the location of their contact
2. DCT and the efferent arteriole at the location of their contact
3. PCT and the afferent arteriole at the location of their contact
4. PCT and the efferent arteriole at the location of their contact
Subtopic:  Autoregulation of GFR |
 77%
From NCERT
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An excessive loss of body fluid can:

1. activate osmoreceptors, stimulating hypothalamus to release ADH and thereby preventing diuresis
2. switch off osmoreceptors, suppressing release of ADH promoting diuresis
3. activate osmoreceptors, stimulating hypothalamus to release ADH and thereby promoting diuresis
4. switch off osmoreceptors, suppressing release of ADH preventing diuresis
Subtopic:  Autoregulation of GFR |
 87%
From NCERT
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Identify the incorrect statement regarding antidiuretic hormone (ADH):

1. It is synthesized by the neurons of the hypothalamus and stored and released from the neurohypophysis.
2. It binds to receptors on the collecting duct cells and activates a cAMP second messenger system.
3. It is released during body dehydration conditions and acts on the collecting duct.
4. ADH is released when osmoreceptors in the hypothalamus sense a decrease in the blood osmolality.
Subtopic:  Autoregulation of GFR |
From NCERT
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Identify the correct statement regarding human kidney function if ADH is not secreted in the body:

1. Urine will be isoosmotic with plasma.
2. PCT will not be able to reabsorb water and sodium.
3. The collecting ducts have very low permeability to water.
4. The distal tubules secrete water.
Subtopic:  Autoregulation of GFR |
 65%
From NCERT
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The collecting ducts become permeable to water and urea due to:

1. Aldosterone 2. Atrial natriuretic peptide
3. Renin 4. ADH (vasopressin)
Subtopic:  Autoregulation of GFR |
 68%
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ADH:
I: facilitates water reabsorption from latter parts of the tubule, thereby preventing diuresis.
II: is a potent vasodilator.
1. Only I is correct 
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic:  Autoregulation of GFR |
 70%
From NCERT
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Consider the given two statements:
Assertion (A): ADH prevents diuresis.
Reason (R): ADH facilitates water reabsorption from the latter parts of the tubule.
 
1. (A) is True but (R) is False.
2. Both (A) and (R) are True and (R) correctly explains (A).
3. (A) is False but (R) is True.
4. Both (A) and (R) are True but (R) does not correctly explain (A).
Subtopic:  Autoregulation of GFR |
 91%
From NCERT
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Which area actually secretes renin into the blood?

1. macula densa 2. juxtaglomerular apparatus
3. juxtaglomerular cells 4. cortical nephron
Subtopic:  Autoregulation of GFR |
 66%
From NCERT
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Consider the given two statements:
Statement I: An increase in blood flow to the atria of the heart can cause the release of Atrial Natriuretic Factor (ANF).
Statement II: A fall in glomerular blood flow/glomerular blood pressure/GFR can activate the JG cells to release renin.
 
1. Statement I is correct; Statement II is incorrect
2. Statement I is correct; Statement II is correct
3. Statement I is incorrect; Statement II is incorrect
4. Statement I is incorrect; Statement II is correct
Subtopic:  Autoregulation of GFR |
 90%
From NCERT
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A hormone formed in the blood that causes vasoconstriction is:

1. Renin 2. Aldosterone
3. Angiotensin 4. Vasopressin
Subtopic:  Autoregulation of GFR |
 51%
From NCERT
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