heart labeling

right pulmonary veins

responsible for carrying oxygenated blood from the lungs back to the left atrium of the heart

right ventricle

responsible for pumping oxygen-poor blood to the lungs

aortic valve

revent the regurgitation of blood from the aorta into the left ventricle during ventricular diastole and to allow the appropriate flow of blood—the cardiac output —from the left ventricle into the aorta during ventricular systole

pulmonary artery

the artery carrying blood from the right ventricle of the heart to the lungs for oxygenation

right atrium

receiving chambers

inferior vena cava

a large vein carrying deoxygenated blood into the heart

superior vena cava

a large vein carrying deoxygenated blood into the heart

left ventricle

during diastole, the ventricles relax and fill with blood again. The left ventricle receives oxygenated blood from the left atrium via the mitral valve and pumps it through the aorta via the aortic valve, into the systemic circulation.

left pulmonary veins

large blood vessels that receive oxygenated blood from the lungs and drain into the left atrium of the heart

bicuspid valve

regulates blood flow from the upper left chamber (left atrium) into the lower left chamber (left ventricle), the heart's main pumping chamber

tricuspid valve

prevent back flow of blood into the right atrium

aorta

the main artery of the body, supplying oxygenated blood to the circulatory system

pulmonary valve

the valve is opened by the increased blood pressure of the ventricular systole (contraction of the muscular tissue), pushing blood out of the heart and into the artery. It closes when the pressure drops inside the heart.

left atrium

ts primary roles are to act as a holding chamber for blood returning from the lungs and to act as a pump to transport blood to other areas of the heart.