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Lec20_07 - function 3 Rationalize the special...

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Lec20- 2007 INTRODUCTORY ANIMAL PHYSIOLOGY BIOAP 311/VETBM 346 FALL 2007 OUTLINE - LECTURE 20 Cardiac Muscle - The Heart as a Pump (Readings - Chapters 13 & 15, Chp. 18 Fig. 18-3) I. Major Topics/Concepts to be covered: 1. Construction of the two-pump system (Fig. 15-1). 2. Pressure gradients 1. Anatomy of the mammalian heart. 2. Blood flow & gradients ((Figs. 15-3, 15-4). 3. Cardiac muscle. 4. Excitation/contraction coupling (Fig. 18-3). II. You will have learned the material when you can: 1. Draw a schematic of the heart. 2. Rationalize the structure of the heart in terms of its
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Unformatted text preview: function. 3. Rationalize the special characteristics of cardiac muscle and the role of specialized conducting tissue. III. Sample Problems: 1. Why is it important for the contraction of the ventricles to start at the apex? 2. What would be the effect of a decrease in extracellular calcium on ventricular function? 3. What would happen if a pathology caused a reduction in the refractory period? 4. What would be the effect of an increase in extracellular sodium on ventricular function? file:///C|/WINWORD/COURSES/31107/Lec20-07.htm8/15/2007 10:16:53 AM...
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