Exam 7: The Peripheral Nervous System: Efferent Division

The heart valves are innervated by the autonomic nervous system.

Diastole refers to the period of cardiac relaxation.

An increase in stroke volume ____________________ the cardiac output.

The tricuspid prevents regurgitation of blood from the right ventricle back into the right atrium.

Match the term, labelled a. through g., with their correct characteristic. a.gap junction b.HDL c.functional syncytium d.heart valve e.pericardial sac f.LDL g.adenosine -carries cholesterol to cells

The semilunar valves close to prevent the backflow of blood into the ventricles.

Match the anatomical structures, labelled e., with the heart characteristics. (Options may be used more than once or not at all.)a. through a.tricuspid valve b.myocardium c.aortic semilunar valve d.AV node e.sinoatrial node -overcomes the afterload of the circuits