Depolarization of the cells causes the heart muscle to:
A) relax.
B) refill the chambers of the heart.
C) conduct electrical impulses.
D) contract.
Correct Answer:
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Q16: The heart is divided into four chambers.
Q17: The valve located between the left atrium
Q18: The outermost layer of the heart is
Q19: Oxygenated blood travels through the heart via
Q20: The _ valves separate the ventricles from
Q22: The AV node has several important functions
Q23: The volume of blood ejected with each
Q24: The T wave represents:
A)atrial contraction.
B)atrial relaxation.
C)ventricular contraction.
D)ventricular
Q25: The P wave represents:
A)atrial contraction.
B)atrial relaxation.
C)ventricular contraction.
D)ventricular
Q26: What is the heart's response to stimulation
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