Understanding the Heart

What are the four main parts of the heart?

• aorta, pulmonary artery, vena cava, coronary artery

• right atrium, right ventricle, left atrium, left ventricle

• right atrium, left atrium, left ventricle, pulmonary vein

• right ventricle, left ventricle, septum, pericardium

Label the atria on a diagram of the heart.

• Superior Vena Cava

• Left Ventricle

• Right Atrium, Left Atrium

• Pulmonary Artery

Label the ventricles on a diagram of the heart.

• Lower Ventricle

• Anterior Ventricle

• Right Ventricle, Left Ventricle

• Upper Ventricle

What is the function of the right atrium?

• To collect oxygenated blood from the lungs

• To regulate blood pressure in the body

• To pump blood to the aorta

• The function of the right atrium is to collect deoxygenated blood from the body and pump it into the right ventricle.

What is the function of the left atrium?

• The function of the left atrium is to receive oxygenated blood from the lungs and send it to the left ventricle.

• To regulate blood pressure in the body.

• To receive blood from the right atrium.

• To pump deoxygenated blood to the lungs.

What is the function of the right ventricle?

• To pump oxygenated blood to the body.

• To receive deoxygenated blood from the lungs.

• To regulate blood pressure in the heart.

• The function of the right ventricle is to pump deoxygenated blood to the lungs.

What is the function of the left ventricle?

• To pump deoxygenated blood to the lungs.

• To pump oxygenated blood to the body.

• To regulate blood pressure in the arteries.

• To receive blood from the right atrium.

Describe the path of blood flow from the body to the heart.

• Blood flows from the body to the heart via the veins into the right atrium, then to the right ventricle, and finally to the lungs.

• Blood flows from the heart to the body through the arteries.

• Oxygenated blood returns to the heart via the pulmonary veins.

• Blood enters the left atrium before going to the right ventricle.

Describe the path of blood flow from the heart to the lungs.

• Blood flows from the right ventricle to the pulmonary arteries, then to the lungs, and returns via the pulmonary veins to the left atrium.

• Blood flows from the lungs to the right ventricle, then to the pulmonary arteries.

• Blood flows from the right atrium to the left ventricle, then to the lungs.

• Blood flows from the left ventricle to the aorta, then to the body.

What role does the aorta play in the circulatory system?

• The aorta carries deoxygenated blood to the heart.

• The aorta carries oxygenated blood from the heart to the body.

• The aorta regulates blood pressure in the lungs.

• The aorta is responsible for filtering blood in the kidneys.