ANAT200 Lecture Notes - Simple Squamous Epithelium, Straight Arterioles Of Kidney, Capillary
Document Summary
Regulate blood volume and ionic composition how much water is in the blood. Regulate blood pressure regulates amount of water lost and secretes the hormone renin. Regulates blood ph excretion of h+ Urethra conducts urine to the exterior. Adrenal gland located on superomedial surface of each kidney. The basic function unit of the kidney (about 1 million per kidney) Proximal convoluted tubule reabsorption of organic nutrients, ions and water. Thick descending/ascending tubules reabsorption of na+ and cl- Thin descending/ascending tubules reabsorption of water (simple squamous) Distal convoluted tubule secretion of ions, acid, toxins and variable reabsorption of ions and water. Collecting tubules and ducts variable reabsorption of water and ions. Aldosterone acts as a switch on regulating salty environment and more water reabsorption. Adh acts as a switch on the collecting tubules to tell them to open na+ and water channels. Blood supply of cortical nephron efferent arteriole forms capillary bed around tubules.
