Anatomy: The Heart and Heart Disease

The thickest layer of muscle in the heart which is the middle layer

• Myocardium

• Endocardium

• Epicardium

• Pericardium

The heart is between the lungs superior to the diaphram in a region known as the

• Epicardium

• Intercalated discs

• Mediastinum

• Pericardium

The ______ side of the heart receives blood low in oxygen

• left

• right

The _________ ___________ (heart chamber) receives blood returning from the body tissue

• right ventricle

• left atrium

• right atrium

• left ventricle

The ___________ _________ (heart chamber) pumps blood into the lungs

• right atrium

• left ventricle

• left atrium

• right ventricle

The ________________ _____________ (heart chamber) has the thickest walls. It pumps oxygenated blood into the aorta

• right ventricle

• right atrium

• left ventricle

• left atrium

________ valves are semilunar valves because each flap resembles a half moon

• entrance

• exit

The _____________ valve flows from the right atrium into the right ventricle. when the right ventricle contracts the valve is ___________

• right atrioventricular (tricuspid), closed

• left atrioventricular (mitral), closed

• right atrioventricular (tricuspid), open

• left atrioventricular (mitral), open

The ______ valve is a semilunar valve between the left ventricle and the aorta

• mitral

• tricuspid

• pulmonary

• aortic

The name of the system that supplies blood to the myocardium__________.

• Coronary vessels

• Coronary circulation

• Coronary sinus

• Coronary system