HBS - Urinary System Review

GFR

Glomerular Filtration Rate, a measure of how well the kidneys filter blood, expressed in milliliters per minute.

How much do normal working kidneys filter in a minute?

120mL/min

How much should normal working kidneys filter in a day?

172.8 L

Bowman’s Capsule and Glomerulus function

Filters small solutes from the blood

Branch of renal artery function

Brings unfiltered blood to kidney for filtration

Branch of renal vein function

Brings filtered blood from the kidney to the body

Proximal convoluted tubule function

1. Regulates water and glucose levels of metabolites + electrolytes.

2. Reabsorbs NaCl, K, Water, glucose, amino acids, bicarbonate, Calcium, phosphate.

3. Secretes ammonium + creatinine

Capillaries

1. provide extra surface area for the absorption for solutes

2. exchange materials between blood and tissue cells