Question

1 Each of statements A to E describe a structure associated with the mammalian heart. For each statement, identify the structure that is being described. A The chamber that pumps blood into the pulmonary artery. B A blood vessel that transports deoxygenated blood into the right atrium. C The specialised tissue responsible for delaying the conduction of impulses from the atria to the ventricles. D The blood vessels that supply cardiac muscle with oxygenated blood. E The valve that prevents the backflow of blood from the ventricle that contains oxygenated blood. [51 Each of statements A to E describe a structure associated with the mammalian heart.

For each statement, identify the structure that is being described.

A The chamber that pumps blood into the pulmonary artery.

B A blood vessel that transports deoxygenated blood into the right atrium.

C The specialised tissue responsible for delaying the conduction of impulses from the atria to the ventricles.

D The blood vessels that supply cardiac muscle with oxygenated blood.

E The valve that prevents the backflow of blood from the ventricle that contains oxygenated blood.

[5

Answer 1

The structures described in the statements are the right ventricle, vena cava, atrioventricular node (AV node), coronary arteries, and aortic valve.

Step-by-step explanation:

The structures being described in the statements related to the mammalian heart are:

• A: The chamber that pumps blood into the pulmonary artery is the right ventricle.
• B: A blood vessel that transports deoxygenated blood into the right atrium is the vena cava.
• C: The specialized tissue responsible for delaying the conduction of impulses from the atria to the ventricles is the atrioventricular node (AV node).
• D: The blood vessels that supply cardiac muscle with oxygenated blood are the coronary arteries.
• E: The valve that prevents the backflow of blood from the ventricle that contains oxygenated blood is the aortic valve.