The systemic circulation of blood flow begins when blood enters the ____.
A) right atrium
B) right ventricle
C) left atrium
D) left ventricle
E) lungs
Correct Answer:
Verified
Q19: Which system uses the blood to eliminate
Q20: The mitral valve _.
A)lies between the
Q21: When the left atrium is contracting _.
Q22: Most vessels that feed abdominal organs are
Q23: The neural control centers for the heart
Q25: Blood leaving the left ventricle must pass
Q26: In a resting person every minute, 20%
Q27: Intrinsic pacemaker cells are located in the
Q28: Which circulation system carries blood from the
Q29: The pulmonary veins deliver blood to the
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