The double-walled membranous sac that protects against friction and permits the heart to move freely during contraction is called the
A) epicardium
B) pericardium
C) endocardium
D) myocardium
Correct Answer:
Verified
Q2: The heart rate is controlled by the
A)
Q3: Which of the following is termed the
Q4: Systole is defined as the
A) contraction phase
B)
Q5: The right ventricle pumps blood into the
A)
Q6: The superior and inferior vena cava empty
Q7: Which of the following is the correct
Q8: Which structure separates the right and left
Q9: Which hormone increases heart rate and increases
Q10: What term is applied to the relaxed,filling
Q11: The pulmonary veins empty into the
A) right
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