Vocab: ingestion, digestion, absorption, elimination, GI tract, mouth, pharynx, esophagus, stomach, perastalsis, salivary glands, gastric juice, duodenum, pancreas, bile, liver, gallbaldder, villi, small intestine, large intestine, urinary system, kidney, filtrate, ureter, urinary bladder, urethra, nephron, Bowman's capsule, collecting duct, glomerulus, loop of Henle, distal tubule, filtration, reabsorption, secretion, excretion,