Stimulation of the aortic baroreceptors reflexively results in

When carotid and aortic baroreceptors reduce their output,

The muscular layer in the wall of a blood vessel is the tunica

Figure 20-2 Cardiac Cycle Use Figure 20-2 to answer the following questions: What occurs at the circled label “5” on the graph?

Arterioles feed blood into

The _____ collect blood directly from capillary beds.

A heart murmur might be caused by

End-systolic volume is defined as the

In a procedure known as ________, an inflatable balloon at the end of a catheter is used to press plaque back against the vessel wall.

In what order would excitation move through the conducting system of the heart?