Physiology 2130 Study Guide - Midterm Guide: Renal Artery, Renal Vein, Extracellular Fluid
3 Sep 2018
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Functions of the kidney: (top 3 are most important: regulation of extracellular fluid volume (ecf) and blood pressure. Fluid in the body is closely related to blood pressure, kidneys work closely with the heart. Increase osmolarity of ecf when eat a lot of salt: kidneys have to work hard to make sure than blood has the right osmolarity, balances fluid so osmolarity of cell remains ~300mosm, maintenance of ion balance. Keep na+, k+, cl-, ca2+, etc. regulated at the right level and excretes the excess ions in urine: maintenance of body ph. Help lungs ensure, with the lungs, that blood is not to acidic or basic: excess ions (h+ and oh-) are excreted in urine, excretion of wastes. Filters waste out of blood and excretes it in urine: waste builds up when kidneys fail, kidneys fail when there"s a problem with blood pressure or osmolarity, production of hormones (acts as an endocrine organ)
