Question

Structural and functional unit of kidney is

• A. Neuron
• B. Nephron
• C. Lungs
• D. Schwanns cells

Answer 1

The correct option is B Nephron

• Nephron is the structural and functional unit of the kidney.
• Its chief function is to regulate the concentration of water and soluble substances like sodium salts by filtering the blood, reabsorbing what is needed and excreting the rest as urine.
• Each nephron is composed of two main structures: the glomerulus and renal (kidney) tubule. There are about 1,000,000 nephrons in each human kidney.
  

Therefore, the correct answer is option B.