The chamber of the heart that is the most powerful is the:
A) Left atrium
B) Left ventricle
C) Right atrium
D) Right ventricle
E) All chambers of the heart have equal forces of contraction
Correct Answer:
Verified
Q12: A heart murmur is caused by:
A)A greater
Q13: The myocardium is the:
A)Sac surrounding the heart
B)The
Q14: Vertebrates with a three-chambered heart include:
A)Fish
B)Amphibians
C)Birds
D)Mammals
E)Annelids
Q15: A heartbeat begins in the:
A)Atrioventricular valve
B)Atrioventricular node
C)Sinoatrial
Q16: The semilunar valves:
A)Prevent arterial blood from reentering
Q18: The upper chambers of the mammalian heart
Q19: Cardiac output may increase by:
A)A greater than
Q20: The large vessels that carry blood to
Q21: The major vein receiving blood draining from
Q22: The cellular components of blood that destroy
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