Module 2 - Function of Heart Components

Question 1

Atria

Answer 1

Contract to generate a force to move blood at low pressure into the ventricles.

Question 2

Ventricles

Answer 2

Contract to generate a force to move blood at high pressure out of the heart.

Question 3

Atrioventricular valves

Answer 3

Prevent backflow of blood from ventricle to atrium when ventricle contracts.

Question 4

Chordae tendinae

Answer 4

Hold AV valves in place and prevent valves inverting (when under pressure) when the ventricle contracts.

Question 5

Semilunar valves

Answer 5

Prevents backflow of blood from the arteries (aorta and pulmonary artery) into ventricle when the ventricles relax.

Question 6

Aorta

Answer 6

Carries oxygenated blood from left ventricle to the body.

Question 7

Pulmonary artery

Answer 7

Carries deoxygenated blood from right ventricle to the lungs.

Question 8

Pulmonary vein

Answer 8

Carries oxygenated blood from lungs to left atrium.

Question 9

Vena cava

Answer 9

Carries deoxygenated blood from the body to the right atrium.

Question 10

Septum

Answer 10

Separates the two sides of the heart from each other so left side can deal with oxygenated blood and the right side with deoxygenated blood.