Figure 20-2 Cardiac Cycle Use Figure 20-2 to answer the following questions: What is occurring in the left atrium at the circle labeled “2” on the graph?
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The backward flow of blood from a ventricle to its atrium or…
The backward flow of blood from a ventricle to its atrium or from a outflow vessel to its ventricle is called
Which of the following are the smallest venous vessels?
Which of the following are the smallest venous vessels?
With each ventricular systole,
With each ventricular systole,
The semilunar valves prevent the backflow of blood into the…
The semilunar valves prevent the backflow of blood into the atria when the ventricles are contracting.
Coronary heart disease results from:
Coronary heart disease results from:
Which event occurs during ventricular systole?
Which event occurs during ventricular systole?
The tricuspid valve is located between the:
The tricuspid valve is located between the:
_____ _____ – produce powerful contractions that propel the…
_____ _____ – produce powerful contractions that propel the blood
A(n) ________ is a bulge, or weakened wall, of an artery.
A(n) ________ is a bulge, or weakened wall, of an artery.