Human Anatomy question 4

timer Asked: Mar 9th, 2016

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Can a second contraction (termed extrasystole) be elicited during phase 2 of the cardiac muscle cell action potential in question 4? (1 pts) How does the duration of the refractory period of the heart compare with that of skeletal muscle? (1 pts) Can cardiac muscle exhibit tetanus? (1 pts) If not, then why not? (2 pts) Why would this be good in terms of the heart’s ability to be an effective pump? (2 pt)

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