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Function of Kidneys overview – outline notes

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Urinary System

I. Organs
A. 2 Kidneys

1. Major excretory
organs
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

Sydney Pulse, APRN
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acls bls classes recertification st louis mo
CPR certification st. louis

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Yes, we are your local American Heart Association training site. We offer in-person classes, skills checks, and blended online learning.

*IMPORTANT NOTE: 100% of CPR St. Louis instructors have entirely completed (1) the rigorous and official American Heart Association instructor training and certification process, and (2) the “How to Teach a Stress-Free CPR Class™” classroom and testing training protocol that ensures a superior experience for everyone. In addition, students will receive their AHA Cards the day of class!

[WARNING]: Because of the high quality, stress-free classroom student experience, our classes fill very fast – so register now to ensure your spot. See our course calendar for online registration or contact us directly by phone, live chat or email with questions.