Question

difference between nephron and renal tubule.
actually what is functional and structural unit of kidney.

Answer 1

Nephron is the structural and functional unit of the kidney. They acts as filters and removes the waste products from blood and forms urine. They are present in large number in the kidney. After filtration, the reabsorption of essential ions and water takes place.

Each nephron has two parts – the glomerulus and the renal tubule. The renal tubule begins with a double walled cup-like structure called Bowman’s capsule, which encloses the glomerulus. The tubule continues further to form a highly coiled network – proximal convoluted tubule (PCT). A hairpin shaped Henle’s loop is the next part of the tubule which has a descending and an ascending limb. The
ascending limb continues as another highly coiled tubular region called distal convoluted tubule (DCT).