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sample_midterm_ii

sample_midterm_ii - 1 Consider a sample of normal human...

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1. Consider a sample of normal human blood that contains approximately 58% plasma. This blood would… a. have a hematocrit of about 42. b. would contain about 40% leukocytes by volume. c. would contain about 40% platelets by volume. d. would contain over 40% erythrocytes by volume. e. a and d $ 2. In the systemic circulation the distribution of total blood volume is such that… 3. Application of a drug which increased K+ (potassium) permeability during phase 4 of the Sino-Atrial nodal action potential would be expected to… 4. Considering all the potentially self-excitatory tissue in the heart, the Sino-Atrial node is the normal cardiac pacemaker because…
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