The cardiac pacemaker is the
A) sinoatrial node.
B) atrioventricular node.
C) pulmonary node.
D) aortic node.
E) sinoventricular node.
Correct Answer:
Verified
Q24: Q47: When the atria of the heart are Q48: Using the flow chart,starting with the heart Q49: The SA node Q50: _ is (are)the transport medium for blood Q53: In which cavity does the human heart Q54: The double layered sac that surrounds the Q55: During the cardiac cycle,which of the following Q56: The driving force for heart contraction is Q57: Which of the following deliver oxygen-poor blood
A) generates excitatory signals for
A)
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