Structure And Function Of The Heart

Question 1

Pulmonary Artery

Answer 1

Takes deoxygenated blood to the lungs from the right ventricle

Question 2

Pulmonary vein

Answer 2

Brings oxygenated blood back to the heart into the left atrium

Question 3

Aorta

Answer 3

Takes oxygenated blood all around the body from the left ventricle

Question 4

Vena Cava

Answer 4

Brings deoxygenated blood back to the heart into the right atrium

Question 5

Pulmonary valve

Answer 5

Between pulmonary artery and right ventricle

Question 6

Aortic valve

Answer 6

Between aorta and left ventricle

Question 7

Bicuspid valve (mitral valve)

Answer 7

Between left atrium and left ventricle

Question 8

Tricuspid valve

Answer 8

Between right atrium and right ventricle

Question 9

Semi lunar valves

Answer 9

Pulmonary and aortic valve

Question 10

Atrio-ventricular valves

Answer 10

Bicuspid and Tricuspid valves

Question 11

Cardiac Cycle

Answer 11

The pattern of contraction and relaxation shown by the heart

Question 12

Systole

Answer 12

The contraction of the heart

Question 13

Diastole

Answer 13

The relaxation of the heart

Question 14

Heart rate

Answer 14

The number of heart beats per minute

Question 15

Stroke volume

Answer 15

Volume of blood which each ventricle pumps as it contracts

Question 16

Cardiac output

Answer 16

Volume of blood pumped out of each ventricle per minute

Question 17

Sino-atrial node

Answer 17

The internal pacemaker of the heart that initiates each heartbeat. Located in the wall of right atrium.

Question 18

Atrio-ventricular node

Answer 18

Passes impulses to a bundle of conducting fibres, stimulating ventricles to contract.

Question 19

Adrenaline

Answer 19

Hormone secreted by the adrenal glands that can increase heart rate.