Heart Structure and function

What is the main function of the ventricles in the heart?

• Filtering waste products from the blood

• Pumping blood to the lungs and the rest of the body

• Producing digestive enzymes

• Regulating body temperature

What is the role of the bicuspid valve in the heart?

• Allowing backflow of blood from the left ventricle to the left atrium

• Controlling blood flow between the aorta and the pulmonary artery

• Regulating blood flow between the right ventricle and the right atrium

• Preventing backflow of blood from the left ventricle to the left atrium

Which vessel carries deoxygenated blood from the heart to the lungs?

• Pulmonary artery

• Aorta

• Coronary artery

• Carotid artery

Describe the structure of the aorta and its significance in the circulatory system.

• The aorta is the largest artery in the body and carries oxygenated blood from the heart to the rest of the body.

• The aorta is a vein that carries deoxygenated blood from the body to the heart.

• The aorta is a small capillary that connects the heart to the lungs.

• The aorta is a muscle that helps pump blood throughout the body.

What is the purpose of the venae cavae in the cardiovascular system?

• To transport oxygenated blood from the heart to the body

• To regulate blood pressure in the arteries

• To filter waste products from the blood

• To return deoxygenated blood from the body to the right atrium of the heart.

How do the atria and ventricles work together to pump blood through the heart?

• The atria receive blood from the body and the ventricles pump blood out to the body.

• The atria pump blood out to the body and the ventricles receive blood from the body.

• The atria and ventricles work independently and do not pump blood together.

• The atria and ventricles both receive blood from the body and pump it out to the body simultaneously.

Explain the function of the pulmonary artery in the heart.

• Has no function in the heart

• Carries oxygenated blood from the lungs to the heart

• Carries deoxygenated blood from the heart to the lungs for oxygenation.

• Carries blood from the heart to the rest of the body

What are the differences between the bicuspid and tricuspid valves in terms of structure and function?

• Structurally, the bicuspid valve has no flaps while the tricuspid valve has five flaps. Functionally, the bicuspid valve regulates blood flow between the left atrium and right ventricle, while the tricuspid valve regulates blood flow between the right atrium and left ventricle.

• Structurally, the bicuspid valve has one flap while the tricuspid valve has four flaps. Functionally, the bicuspid valve regulates blood flow between the left atrium and right ventricle, while the tricuspid valve regulates blood flow between the right atrium and left ventricle.

• Structurally, the bicuspid valve has two flaps while the tricuspid valve has three flaps. Functionally, the bicuspid valve regulates blood flow between the left atrium and left ventricle, while the tricuspid valve regulates blood flow between the right atrium and right ventricle.

• Structurally, the bicuspid valve has three flaps while the tricuspid valve has two flaps. Functionally, the bicuspid valve regulates blood flow between the right atrium and right ventricle, while the tricuspid valve regulates blood flow between the left atrium and left ventricle.

How does the pulmonary vein differ from the pulmonary artery in terms of the blood it carries?

• The pulmonary vein carries carbon dioxide-rich blood.

• The pulmonary vein carries oxygenated blood.

• The pulmonary vein carries deoxygenated blood.

• The pulmonary vein carries blood to the lungs for oxygenation.

Discuss the significance of the atria in the cardiac cycle.

• They are responsible for oxygenating the blood

• They are not involved in the cardiac cycle

• They receive blood from the body and pump it into the ventricles.

• They regulate the heart rate