- 1(current)
Q. No.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: Â Autoregulation of GFR |
 76%
Level 2: 60%+
Hints
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: Â Autoregulation of GFR |
 86%
Level 1: 80%+
Hints
A hormone formed in the blood that causes vasoconstriction is:
| 1. Renin | 2. Aldosterone |
| 3. Angiotensin | 4. Vasopressin |
Subtopic: Â Autoregulation of GFR |
 52%
Level 3: 35%-60%
Hints
The hormone produced by the adrenal cortex, when stimulated by angiotensin II, that causes increased sodium and water reabsorption in the distal convoluted tubules, is:
| 1. renin | 2. aldosterone |
| 3. antidiuretic hormone | 4. cortisol |
Subtopic: Â Autoregulation of GFR |
 82%
Level 1: 80%+
Hints
Which area actually secretes renin into the blood?
| 1. | macula densa | 2. | juxtaglomerular apparatus |
| 3. | juxtaglomerular cells | 4. | cortical nephron |
Subtopic: Â Autoregulation of GFR |
 69%
Level 2: 60%+
Hints
Identify the incorrect statement regarding GFR:
| 1. | The GFR averages approximately 180 L per day (about 125 ml/min). |
| 2. | The GFR increases during sympathetic stimulation due to the vasodilation of afferent arterioles. |
| 3. | A decrease in GFR results in a decrease in the total urine output. |
| 4. | Renal auto-regulation maintains the GFR at a relatively constant rate normally. |
Subtopic: Â Autoregulation of GFR |
 68%
Level 2: 60%+
Hints
- 1(current)
Q. No.
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