Physiology 2130 Chapter Notes -Osmotic Concentration, Niacin, Parietal Cell
29 Sep 2013
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Main function: break down organic nutrients so that they can be absorbed into the body: organic nutrients: Meat within hamburger is made up of mostly protein with a little fat (lipid) Hamburger bun and fries are made up of carbs (fries also contain fat) Soda consists mostly of water, carbs, and some other dissolved substances. Mouth food is broken up by chewing (mastication) and is mixed with saliva. Salivary glands produce saliva to moisten and begin digesting some food particles. Esophagus straight muscular tube that connects the mouth and pharynx to the stomach. Stomach stores, mixes, and digests some food and delivers food to the small intestine. Pancreas - secretes digestive enzymes, hormones, and bicarbonate. Small intestine allows digestion and absorption of most food particles. Large intestine stores and concentrates undigested material and absorbs salt and water. Rectum site where defecation reflex is triggers.
