Understanding Heart Structure and Function

What is the primary function of the atria?

• To receive blood returning to the heart.

• To regulate blood pressure.

• To pump blood to the lungs.

• To store oxygen for the body.

Where are the atria located in the heart?

• The atria are located in the lower chambers of the heart.

• The atria are located in the upper chambers of the heart.

• The atria are located on the right side of the heart only.

• The atria are located behind the ventricles of the heart.

What role do the ventricles play in the heart?

• The ventricles pump blood out of the heart, with the right ventricle sending blood to the lungs and the left ventricle sending blood to the body.

• The ventricles store blood until it is needed by the body.

• The ventricles are responsible for electrical conduction in the heart.

• The ventricles receive blood from the body and lungs.

Identify the location of the ventricles within the heart.

• The ventricles are located in the upper chambers of the heart.

• The ventricles are located in the lower chambers of the heart.

• The ventricles are found on the right side of the heart only.

• The ventricles are located in the atria of the heart.

What is the function of heart valves?

• To allow blood to flow in both directions.

• To filter impurities from the blood.

• To increase blood pressure during contraction.

• To ensure unidirectional blood flow and prevent backflow.

How do heart valves contribute to blood flow?

• Heart valves store blood until it is needed by the body.

• Heart valves pump blood directly into the lungs.

• Heart valves regulate blood pressure in the arteries.

• Heart valves ensure unidirectional blood flow by opening and closing in response to pressure changes.

Describe the pathway of blood through the heart starting from the vena cava.

• Blood travels from the vena cava to the left ventricle, pulmonary arteries, and then to the right atrium.

• Blood flows from the vena cava to the left atrium, left ventricle, aorta, and then to the body.

• Blood flows from the vena cava to the right atrium, right ventricle, pulmonary arteries, lungs, pulmonary veins, left atrium, left ventricle, and finally to the aorta.

• Blood moves from the vena cava to the right ventricle, aorta, and then to the lungs.

What major blood vessel carries oxygenated blood from the heart to the body?

• coronary artery

• pulmonary artery

• vena cava

• aorta

Which blood vessel brings deoxygenated blood back to the heart?

• Aorta

• Coronary artery

• Pulmonary artery

• Vena cava

What is the function of the pulmonary artery?

• The pulmonary artery carries oxygenated blood to the heart.

• The function of the pulmonary artery is to transport deoxygenated blood from the heart to the lungs.

• The pulmonary artery connects the lungs to the aorta.

• The pulmonary artery is responsible for filtering blood in the lungs.