The primary function of proximal tubule is reabsorption, selective reabsorption of useful substance by active transport. is false.
Nephron is basic functional unit of kidney.it consists of three parts-
The renal corpuscles
Filtering component
The renal tubule
The renal tubule is divided into -
1. Proximal convoluted tubule (PCT)
2. Loop of Henle
3. Distal convoluted tubule (DCT)
PCT has high capacity for reabsorption as it is lined up with cuboidal epithelial cells which have a brush border to increase the surface area on apical side.
It completes the reabsorption of water, glucose, amino acid and important anions, including phosphate and citrate because it is the sole site of transport of the filtered solutes. Also plays an important role in regulating acid-base balance by reabsorbing approximately 80% of filtered bicarbonate.
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