Cardiovascular Part 1

The muscular layer of the heart wall is the:

• epicardium

• pericardium

• myocardium

• endocardium

The inner layer of tissue in the heart is the:

• epicardium

• pericardium

• myocardium

• endocardium

The valve that guards the left atrioventricular (AV) junction is called:

• the bicuspid

• the tricuspid

• the aortic semilunar

• the pulmonary semilunar

The valve that prevents backflow of blood into the right ventricle as it leaves the heart is the:

• bicuspid

• tricuspid

• aortic semilunar

• pulmonary semilunar

Deoxygenated blood leaves the heart through the:

• superior vena cava

• inferior vena cava

• aorta

• pulmonary trunk

Atrioventricular valves prevent:

• back flow of blood into the atria

• back flow of blood into the lungs

• back flow of blood into the vena cava

• back flow of blood into the ventricles

The chamber of the heart that ejects blood into the aorta is the:

• right atrium

• right ventricle

• left ventricle

• left atrium

The pulmonary arteries carry blood to the:

• lungs

• left atrium

• right atrium

• ventricles

Oxygenated blood leaves the heart through the:

• aorta

• vena cava

• pulmonary arteries

• pulmonary veins

The outer layer of the tissue in the heart is the epicardium. True or False?

• True

• False