NFS 207 Chapter Notes - Chapter 3: Portal Vein, Intestinal Villus, Gastroesophageal Reflux Disease
24 Mar 2014
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Digestion: the process by which food is broken down into absorbable units. Absorption: the uptake of nutrients by the cells of the small intestine for transport into either the blood or the lymph. The vascular system: aorta: the large, primary artery that conducts blood from the heart to the bod"s arteries, arteries: vessels that carry blood from the heart to the tissues, capillaries: small vessels that branch from an artery. The lymphatic system: lymphatic system: a loosely organized system of vessels and ducts that convey fluids toward the heart. The gi part carries the products of fat digestion into the bloodstream: lymph: a clear yellowish fluid. 3. 4 the health and regulation of the gi tract. Gastrointestinal hormones and nerve pathways: homeostasis: the maintenance of constant internal conditions by the body"s control systems. A homeostatic system is constantly reacting to external forces to maintain limits set by the body"s needs: hormones: chemical messengers.
