The heart's pacemaker, called the sinoatrial (SA) node, is located in:
A) The apex of the left ventricle
B) The upper right-hand corner of the right atrium
C) The lower left-hand corner of the right ventricle
D) The papillary muscles
Correct Answer:
Verified
Q23: An EKG measures:
A) The electrical activity of
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Q26: The septum between the right and left
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Q29: The fibrous sac that encircles most of
Q30: The thoracic aorta becomes the abdominal aorta
Q31: Cardiac chambers empty when they contract (during
Q32: A loud murmur heard at the base
Q33: A systolic murmur audible at the apex
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