The primary function of renal corpuscle is:Group of answer choicesReabsorptionSecretionFiltrationExcretion

The primary function of the renal corpuscle is Filtration.

Here's a step-by-step explanation:

1. The renal corpuscle is the first part of a nephron, which is a functional unit of the kidney. There are about a million nephrons in each human kidney.

2. The renal corpuscle consists of two parts: the glomerulus and the Bowman's capsule. The glomerulus is a network of capillaries, and the Bowman's capsule is a cup-shaped sac that surrounds it.

3. Blood enters the kidney through the renal artery, which branches off into many smaller blood vessels. The smallest of these vessels are the capillaries in the glomerulus.

4. The primary function of the renal corpuscle is to filter the blood. As blood passes through the glomerulus, water, salts, glucose, amino acids, and waste products are filtered out. This process is known as glomerular filtration.

5. The filtered substances, now known as filtrate, pass into the Bowman's capsule and then into the renal tubule, where reabsorption and secretion occur. The remaining waste products are then excreted from the body in the form of urine.

So, among the given options, Filtration is the primary function of the renal corpuscle.