AN SC 423 Study Guide - Midterm Guide: Diuretic, Proximal Tubule, Osmotic Concentration
Document Summary
Removal of metabolic waste products and exogenous chemicals from the blood and their excretion in the urine. Regulation of water and inorganic - ion balance. Helps to convert angiotensin i to angiotensin ii (vasoconstrictor) Functional unit of the kidney is a nephron. Technically, animals can survive with one kidney since they do not need all of the nephrons available. More nephrons make the kidney more efficient. The bunch of capillaries in the glomerulus are coming from the renal artery. Afferent arterioles lead up to the capillaries. Efferent arterioles lead away from the capillaries. This is the first place where filtration begins. Juxtamedullary nephrons are closer to the medulla. Tubular part of the nephron extends farther into the medulla. There are two capillary beds with cortal circulation. Fenestrated capillaries - have windows in them, which are chennels for moving water. Windows are formed by water droplets from the channels. It is made of collections of proteins.
