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Function of Kidneys overview – outline notes

By at September 18, 2011 | 9:38 am | Print

Urinary System

I. Organs
A. 2 Kidneys

1. Major excretory
2. Filter blood
3. Eliminate nitrogenous waste
a. Creatinine – muscle metabolism, creatine breakdown
b. Urea – amino acid metabolism
c. Uric acid – nucleic acid metabolism
4. Elimination of excess ions, toxins, wastes, etc
5. Regulation of fluids
a. pH balance
1) Kidneys
2) Lungs [CO2]
3) Blood buffering systems
b. Salt/water balance
6. Produces
a. Renin
b. Erythropoietin

B. 2 Ureters

C. 1 Bladder

D. 1 Urethra

II. Nephron
A. 1 million / kidney

B. Functional units of kidney — filter blood to produce urine

C. Structure of a nephron
1. Renal Corpuscle
a. Bowman’s capsule
b. Glomerulus
2. Proximal convoluted tubule
3. Loop of Henle
4. Distal convoluted tubule

5. Collecting duct —- not part of nephron; numerous nephrons drain into a single
collecting duct
6. Peritubular capillaries – surround tubules of nephron

Misc Articles Physiology outline notes ,

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