Which of the following is also known as the pacemaker of the heart?
a. atrioventricular
b. Purkinje fibers
c. atrioventricular bundle
d. sinoatrial node
Answer: D
Which of the following is also known as the pacemaker of the heart?
a. atrioventricular
b. Purkinje fibers
c. atrioventricular bundle
d. sinoatrial node
Answer: D
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