Question

Where does glomerular filtration, the first stage of urine formation, occur?

Answer 1

The glomerulus serves as the first stage in the filtering process of the blood carried out by the nephron in its formation of urine.

Explanation:

The glomerulus is a network of capillaries located at the beginning of a nephron in the kidney. The glomerulus is surrounded by a cup like sac known as Bowman's capsule . This empties the filterate into the proximal tubule that is also part of the duct system of the nephron.

The glomerulus drains into an efferent arteriole. The resistance of these arterioles results in high pressure within the glomerulus, aiding the process of ultra filteration. The fluids and soluble materials in the blood are forced out of the capillaries into the Bowman's capsule.