Short Answer
The heartbeat is initiated by the cells of the ________ node.
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q51: Occlusion of blood vessels tends to lead
Q52: Which action leads to the closure of
Q53: Norepinephrine is considered a positive chronotropic agent
Q54: Someone with a heart block would have<br>A)
Q55: Atrial contraction occurs just before<br>A) isovolumetric relaxation.<br>B)
Q57: The membrane of a contractile cardiac muscle
Q58: The beginning of ventricular contraction, when all
Q59: Like skeletal muscle cells, cardiac muscle cells
Q60: In an ECG, what does the T
Q61: The serous fluid within the pericardial cavity