[BIOL 320] - Final Exam Guide - Comprehensive Notes fot the exam (43 pages long!)

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30 Mar 2017
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Must be in the diet, because the body cannot make it fast enough. Increases the bulk of the stool and facilitates in defecation. Synthesizes lipoproteins for transport of cholesterol and fats. Should be twice as abundant as ldl for proper cholesterol movement. Transports excess cholesterol from peripheral tissues to liver, ovaries, and adrenal glands. Should be as abundant as hdl for proper cholesterol movement. Structural components of cells (lipids in membranes) The pattern of electrical activity recorded at the body surface. Oxygenated blood arrives at left side of heart. Contractions do not rely on nerve supply. Yes, sinus arrhythmia, respiratory affects heart rate. Through the muscle fibers of the atria. Contractions that push blood into the ventricles. The only electrical connection between the atria and the ventricles. Describe the characteristics of the action potential: Spreads slowly through av node, to allow atrial contraction to contribute to ventricular filling.

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