The number of action potentials per minute each type of autorhythmic cell can generate under resting conditions is as follows:
A. the rate for the SA node is 70-80, for the AV node is 40-60 and for the Bundle of His and Purkinje fiber is 20-40
B. the rate for the SA node is 70-80, for the AV node is 70-80 and for the Bundle of His and Purkinje fiber is 40-60
C. the rate for the SA node is 70-80, for the AV node is 20-40 and for the Bundle of His and Purkinje fiber is 40-60
D. the rate for the SA node is 40-60, for the AV node is 70-80 and for the Bundle of His and Purkinje fiber is 40-60
E. the rate for the SA node is 40-60, for the AV node is 70-80 and for the Bundle of His and Purkinje fiber is 20-40
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Which vascular bed shows almost no myogenic autoregulation:
A. none of the answers
B. cerebral circulation
C. skeletal muscle circulation
D. kidney circulation
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