Exam 11: Cardiovascular System: The Heart

What is the term for the part of the conduction system that is called the pacemaker?

All chambers of the heart are in diastole at the same time for about half the duration of a normal cardiac cycle.

What is the term for the chamber that receives venous blood from the superior vena cava?

The component of the conduction system that is called the pacemaker is the

The layer of the heart wall that is continuous with the valves and blood vessels is the

The coronary arteries that supply oxygenated blood to the myocardium are branches of the

A disease condition of heart muscle is indicated by the word

The heart chamber that pumps blood out to the lungs is the

What is the term for the atrioventricular valve that is associated with the same chamber as the pulmonary semilunar valve?

Semilunar valves prevent the flow of blood from a(n)

The coronary sinus opens into the

The chordae tendineae and papillary muscles have an important role in the normal function of the

What is the term for the thickest layer of the heart wall?

The contraction phase of a cardiac cycle is called

The portion of the pericardium closest to the sternum is the

The heart lies _____ midline.

All of the following have the same effect on heart rate EXCEPT

What is the term for the contraction phase of the cardiac cycle?

What is the term for the portion of the autonomic nervous system that generally increases heart rate and contraction strength?

The chamber of the heart that receives blood from the superior vena cava is the