#1
Which chamber of the heart receives deoxygenated blood from the body?
1 answered
#2
What is the term for the relaxation phase of the cardiac cycle?
1 answered
#3
Which blood vessel carries oxygenated blood away from the heart to the rest of the body?
1 answered
#4
Which valve prevents the backflow of blood from the aorta into the left ventricle?
1 answered
#5
What is the term for the amount of blood pumped out by each ventricle in a single contraction?
1 answered
#6
Which of the following is NOT a function of the circulatory system?
1 answered
#7
Which of the following is NOT a component of the intrinsic conduction system of the heart?
1 answered
#8
Which of the following is responsible for the initiation of the heartbeat in the heart?
1 answered
#9
During which phase of the cardiac cycle do the ventricles contract and pump blood out of the heart?
1 answered
#10
Which of the following factors does NOT affect cardiac output?
1 answered
#11
What is the Frank-Starling mechanism?
1 answered
#12
What is the term for the period of time during which the ventricles are contracting and pushing blood out of the heart?
1 answered
#13
Which of the following hormones increases heart rate and contractility?
1 answered
#14
Which of the following factors primarily determines preload?
1 answered
#15
What is the term for the volume of blood ejected by each ventricle per minute?
1 answered
#16
Which part of the nervous system primarily controls heart rate and contractility?
1 answered
#17
What is the term for the period of time during which the ventricles are relaxing and filling with blood?
1 answered
#18
Which of the following factors would cause an increase in afterload?
1 answered
#19
Which of the following factors primarily determines contractility of the heart muscle?
1 answered