Blood Flow through the Heart

Deoxygenated blood enters this chamber first

• Left Atrium

• Right Atrium

• Left Ventricle

• Right Ventricle

This structure separates the right atrium from the right ventricle

• Bicuspid (mitral) valve

• Aortic Semilunar Valve

• Tricuspid Valve

• Pulmonary Semilunar Valve

Which valve separates the left atrium and left ventricle?

• Tricuspid Valve

• Pulmonary Semilunar Valve

• Aortic Semilunar Valve

• Bicuspid (mitral) valve

Deoxygenated blood is carried to the lungs via

• pulmonary arteries

• pulmonary veins

• coronary arteries

• the aorta

Oxygenated blood returns from the lungs to the left atrium via

• the aorta

• the pulmonic valve

• pulmonary arteries

• pulmonary veins

This valve prevents blood from flowing back down into the right ventricle

• pulmonary semilunar

• tricuspid

• bicuspid (mitral)

• aortic semilunar

This valve prevents blood from flowing back down into the left ventricle

• tricuspid

• bicuspid (mitral)

• aortic semilunar

• pulmonary semilunar (pulmonic)

These vessels provide the heart muscle with freshly oxygenated blood

• common carotid arteries

• femoral arteries

• coronary arteries

• coronary sinus

The endocardium of the heart has convoluted surfaces called

• pericardium

• myocardium

• trabecular carneae

• Interventricular septa

Deoxygenated blood returns to the heart via

• inferior vena cava

• superior vena cava

• coronary sinus

• all of these