Column I | Column II |
a. Proximal convoluted tubule | 1.Formaton of concentrated urine |
b. Distal convoluted tubule | 2.Filtration of blood |
c. Henle?s loop | 3. Reabsorption of 70-80% of electrolytes |
d. Counter current mechanisms | 4. ionic balance |
e. Renal corpuscle | 5. Maintenance of concentration gradient in medulla. |
Answer:
(b) Proximal
convoluted tubule is involved in reabsorption of 70-80% of electrolytes.
Distal convoluted
tubule is involved in secretion of hydrogen, potassium ions and in
order to maintain pH and sodium-potassium balance in blood (ionic balance).
Henle's loop
(the descending limb) is permeable to water, but almost impermeable to
electrolytes. This concentrates the urine (filtrate) as it moves down.
Counter current
mechanisms helps to maintaining a concentration gradient in the medullary
interstitium of kidney.
Renal corpuscle
involves filtration of blood via glomerulus and Bowman's capsule.
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