BIOL 4330 Lecture Notes - Lecture 22: Extracellular Fluid, Creatinine, Urinary System
Document Summary
Lecture 22: major anatomical features, physiologic features are the processes in urine production. What they do: trash collectors and recyclers, 1. Kidneys excrete 21g of urea per day as a byproduct of protein metabolism and 1. 8g of creatinine from muscle metabolism and 0. 5g for curine metabolism. Basic key functions for kidneys: regulate ecf volume, comprised of plasma and interstitial fluid. Electrolyte balance: control of inorganic ions that exist within the plasma by balancing dietary intake with urinary loss, sodium is major contributor, kidneys are also responsible for k, ca, cl, hco3, po4, 3. Regulate acid base balance: role of carbon dioxide and bicarbonate, kidneys are major regulator, remove hydrogen ion and reabsorb bicarbonate to change concentrations between the 2. Important of o2 loading and unloading: 4. Excrete waste such as urea, creatinine, etc: 5. A lot of metabolic functions: uses a lot of atp, have large # of mitochondria and capable of producing hco3 from h and co2.
