The SA node increases heart rate from the release of _____ in the _____.
A) Norepinephrine, parasympathetic nervous system
B) Norepinephrine, sympathetic nervous system
C) Acetylcholine, parasympathetic nervous system
D) Acetylcholine, sympathetic nervous system
Correct Answer:
Verified
Q6: The right atrium receives blood from the:
A)
Q7: Excitation and contraction of the heart occurs
Q8: The P wave on an ECG corresponds
Q9: Dead muscle cells are replaced with connective
Q10: An increase in heart rate primarily begins
Q12: Insufficient blood flow in coronary arteries to
Q13: What region of the heart is responsible
Q14: What regulates the rate and force of
Q15: The parasympathetic nervous system has _ effect
Q16: A decrease in myocardial function will immediately
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