Understanding Blood Flow in the Heart

What is the main function of the heart?

• To digest food and absorb nutrients.

• To pump blood throughout the body.

• To filter waste from the blood.

• To produce hormones for growth and metabolism.

Name the four chambers of the heart.

• upper atrium, lower atrium, left ventricle, right ventricle

• right atrium, right ventricle, left atrium, pulmonary artery

• right atrium, left atrium, left ventricle, aorta

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

What is the role of the right atrium?

• The right atrium is responsible for oxygenating blood.

• The right atrium pumps blood to the left ventricle.

• The right atrium collects oxygenated blood from the lungs.

• The right atrium collects deoxygenated blood and pumps it to the right ventricle.

How does blood flow from the right atrium to the right ventricle?

• Blood flows from the right atrium to the left ventricle through the mitral valve.

• Blood flows from the right atrium to the right ventricle through the aortic valve.

• Blood flows from the right atrium to the right ventricle through the tricuspid valve.

• Blood flows from the right atrium to the right ventricle via the pulmonary artery.

What is the purpose of the pulmonary arteries?

• To carry oxygenated blood from the lungs.

• To supply nutrients to lung tissue.

• To filter blood before it reaches the heart.

• To transport deoxygenated blood to the lungs.

Where does oxygen-rich blood return to the heart?

• Pulmonary artery

• Left atrium

• Left ventricle

• Right atrium

What is the function of the left ventricle?

• The left ventricle receives deoxygenated blood from the body.

• The left ventricle regulates blood pressure in the heart.

• The left ventricle pumps blood to the lungs for oxygenation.

• The left ventricle pumps oxygenated blood to the body.

How does blood flow from the left ventricle to the aorta?

• Blood flows from the left ventricle to the aorta through the pulmonary valve.

• Blood flows from the left ventricle to the aorta via the mitral valve.

• Blood flows from the left ventricle to the aorta through the tricuspid valve.

• Blood flows from the left ventricle to the aorta through the aortic valve.

What is the significance of the heart valves?

• Heart valves are significant because they ensure unidirectional blood flow and prevent backflow within the heart.

• Heart valves are responsible for pumping blood throughout the body.

• Heart valves regulate blood pressure in the arteries.

• Heart valves are involved in oxygenating the blood.

How does the heart ensure unidirectional blood flow?

• The heart uses valves to ensure unidirectional blood flow.

• The heart uses capillaries to ensure unidirectional blood flow.

• The heart uses arteries to ensure unidirectional blood flow.

• The heart relies on muscle contractions to ensure unidirectional blood flow.