Exam 12: The Cardiovascular System: the Heart

Heart valves open and close because of

EDV minus ESV equals

Match the structure in the first column with its description in the second column. _____ 1. systole A. relaxation of heart chambers _____ 2. diastole B. period of cardiac contraction _____ 3. anastomoses C. pacemaker of heart _____ 4. SA node D. amount of blood ejected by the left ventricle each minute _____ 5. cardiac output E. juncture of two peripheral vessels with the capillary bed

Preload directly determines

Using the figure above, identify the labeled part. -Label K: ________

The heart wall is composed of ________ layers of tissue.

Using the figure above, identify the labeled part. -Label O: ________

Using the figure above, identify the labeled part. -Label H: ________

The skeleton of the heart consists of

In rheumatic heart disorder, the bicuspid valves close incompletely, leading to

Using the figure above, identify the labeled part. -Label L: ________

Depolarization of the atria is represented on an electrocardiogram by the

Using the figure above, identify the labeled part. -Label N: ________

Abnormal patterns of cardiac activity are known as _________________________.

When arteries connect to one another, it is called an arterial _________________________.

If the connection between the SA node and AV node becomes blocked,

The marginal artery branches off the

The cardioinhibitory center controls activities of the ________ neurons.

The atrioventricular valve on the left side of the heart is the

Folding of the valves in the wrong direction is called