1.The effective-refractory period present during Phase 2 of the action potential of ventricular myocytes: A)is relatively long because the Na+ current does not inactivate. B) is relatively long because K+ current is immediately activated once membrane potential becomes positive. C) prevents tetanus in the heart. D) is about twice as long as in skeletal muscle  2.Which of the following promotes reabsorption of water into the capillary? A)Plasma oncotic pressure B)Capillary hydrostatic pressure C)Interstitial fluid oncotic pressure D)Soluble electrolytes E)Red blood cells.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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1.The effective-refractory period present during Phase 2 of the action potential of ventricular myocytes: A)is relatively long because the Na+ current does not inactivate. B) is relatively long because K+ current is immediately activated once membrane potential becomes positive. C) prevents tetanus in the heart. D) is about twice as long as in skeletal muscle

 2.Which of the following promotes reabsorption of water into the capillary? A)Plasma oncotic pressure B)Capillary hydrostatic pressure C)Interstitial fluid oncotic pressure D)Soluble electrolytes E)Red blood cells.

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