Heart excitation originates in the
A) atrioventricular node.
B) intercalated disk.
C) sinoatrial node.
D) pericardium.
E) endocardium.
Correct Answer:
Verified
Q31: Diastolic pressure is
A) the lowest blood pressure
Q32: An artificial pacemaker supplements the actions of
A)
Q33: Blood from the systemic circuit is first
Q34: Which vein collects blood from the head,
Q35: Which of the following is NOT a
Q37: Blood pressure is measured in
A) millimeters of
Q39: The systolic pressure for a normal young
Q40: Which of the following has the highest
Q41: Baroreceptors are located in the
A) coronary arteries.
B)
Q43: The pulmonary artery carries blood away from
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