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?

The continual movement of fluid through the interstitial spaces produced by capillary filtration serves which of the following functions?

With each ventricular systole,

The semilunar valves prevent the backflow of blood into the atria when the ventricles are contracting.

The tricuspid valve is located between the:

Listing. List three differences between arteries, veins and capillaries (ex.- characteristics, function, what they carry, etc) (2 X’s each) Veins Arteries Capillaries

A(n) ________ is a bulge, or weakened wall, of an artery.

Deoxygenated blood is returned to the right side of the heart by the:

Cardiac muscle cells have a long _____ period so that rapid stimulation produces isolated rather than spasmic contractions.

Which of the following is true about the atrial reflex?