Which of the following structures does NOT require stimulation from nerve fibers or other agents?
A) chordae tendineae
B) papillary muscles
C) sinoatrial node
D) atrial syncytium
E) AV bundle
Correct Answer:
Verified
Q2: Capillary walls are only one cell layer
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Q7: Atrial repolarization produces the T waves seen
Q16: Due to the small diameter of the
Q19: The parietal pericardium is the innermost layer
Q22: In an ECG pattern,the T wave is
Q23: The pain of angina pectoris comes from
Q24: In an electrocardiogram (ECG)pattern,the P-Q interval indicates
Q25: Impulses carried to the heart by means
Q26: The pulmonary circuit
A) sends oxygen-poor blood to
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