BIOL 1175 Lecture Notes - Tubular Fluid, Penicillin, Distal Convoluted Tubule
Document Summary
The process that rids body of metabolic wastes (esp. Kidneys : excretes nitrogenous wastes (amonia, urea, uric acid, creatinine) Ammonia = nh3 : very toxic to tissues. Comes from creatinine phosphate in muscle metabolism. Bile pigments: from breakdown of red blood cells. Co2 : the lungs major site of excretion. Ions such as: salts k+, na+, ca++, mg++, fe+ Not metabolic products (a chemical processes that occur in organisms to survive) Urine : composed of urea( 3%), salt ~(2%), h2o(95%) Skin: glands excrete perspiration (which consists of h2o, salt, and small amounts of urea. Excretion from the skin is primary for cooling. Bile contains pigments that are breakdown products of rbc metabolism. Renal vein- carries blood from kidney back to heart. Secures against the dorsal (back) body wall by connective tissues. Moves urine from kidneys to bladder (via peristalsis) Has stretch receptors that indicate when it is full.
