I: | Allows passage of small amounts of urea into the medullary interstitium |
II: | Large amounts of water could be reabsorbed from this part to produce a concentrated urine. |
1. | Only I | 2. | Only II |
3. | Both I and II | 4. | Neither I nor II |
Aderenal cortex releases aldosterone when activated by:
1. ADH
2. Low potassium concentration in ECF
3. Angiotensin II
4. Renin
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