2.71 Ultrafiltration

2.71 describe ultrafiltration in the Bowman’s capsule and the composition of the glomerular filtrate.

The filtration of our blood takes place in the Nephron, resulting with two products: the filtered blood and Urine (waste).

The Urine (composed of water, salts and Urea) drains out of the Collecting duct into the pelvic region, and then drains into the bladder.

1. Blood arrives into the kidney under high pressure through the Afferent Arteriole
2. The Arteriole begins to branch off and create a twisted knot-like structure called the Glomerulus; the Efferent arteriole has a smaller diameter resulting in a pressure increase in the glomerulus.
3. The high pressure forces plasma (contains water, salts, amino acids, glucose, urea) out of the blood vessel into the inside of the Bowman’s capsule, The plasma is called Glomerular filtrate