Physiology Presentation Essay Example | Topics and Well Written Essays - 250 words

Physiology Presentation - Essay Example Chyme travels to small intestine, where the pH is alkaline to activate enzymes for breakdown of proteins, carbohydrates and fats, liver secretes bile for the emulsification of fat, while pancreas secrete insulin and glucagon for controlling blood sugar level converting from chyme to chyle. Numerous microvilli of the small intestine, lined by blood vessels absorbs the food as now it is in simpler forms namely monosaccharide, amino acids, fatty acids and glycerols. The refuse moves to large intestine (water absorption takes place) for expulsion. Respiration is done through nose, pharynx, trachea, bronchia, bronchioles and alveoli. It encompasses exchange of oxygen and carbon-di-oxide in lungs converting the deoxygenated blood collected by veins to oxygenated blood to be circulated back to body tissues through arteries. The exchange of gases mainly takes place in alveoli and in capillaries of numerous tissues. Blood vascular system plays an imperative role in transporting food as well a s oxygen to all the body parts and eliminating carbon-di-oxide from each tissue.