What makes heart cells beat together?
A) They beat by themselves.
B) The brain
C) The pacemaker
D) The heart itself
E) Spinal nerves
Correct Answer:
Verified
Q28: If blood pressure is reduced to near
Q29: Why is it important that blood pressure
Q30: What purpose do blood pH sensors serve?
A)
Q31: How does the body control respiration rate?
A)
Q32: Where are the pressure sensors that monitor
Q34: The balance of which two things can
Q35: Where is the pacemaker located?
A) The right
Q36: How does high blood pressure lead to
Q37: Which of the following is a good
Q38: What causes a heart attack?
A) A blockage
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