Tardigrade
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Tardigrade
Question
Biology
All the components of the conducting system can generate an action potential for the contraction of heart muscle , but the SA node acts as the pacemaker because
Q. All the components of the conducting system can generate an action potential for the contraction of heart muscle , but the SA node acts as the pacemaker because
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Body Fluids and Circulation
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A
all the components of the heart cannot conduct the action potential
B
only the SA node is autoexitable and autorhythmic
C
the SA node has a higher inherent rate of depolarization
D
the SA node has a lower inherent rate of depolarization
Solution:
Correct answer is (c) the SA node has a higher inherent rate of depolarization