Heart

Question 1

Heart

Answer 1

Muscular organ pumps blood through body

Question 2

Circulatory system

Answer 2

Closed double loop

Question 3

Pulmonary loop

Answer 3

Deoxygenated blood leaves heart

• travels to lungs, loses carbon dioxide and receive oxygen
• oxygenated blood return to heart

Question 4

Systemic loop

Answer 4

Delivers oxygenated blood to rest of body

-then returns deoxygenated blood to heart

Question 5

Right atrium

Answer 5

Collects blood from body

Question 6

Right ventricle

Answer 6

Pumps blood to lungs

Question 7

Left atrium

Answer 7

Collect blood from lungs

Question 8

Left ventricle

Answer 8

Pumps blood to body

Question 9

Atrioventricular valve

Answer 9

Located between atria and ventricles

Question 10

Tricuspid valve

Answer 10

Separates right ventricle and pulmonary artery

Question 11

Mitral valve

Answer 11

Separate left atrium and left ventricle

Question 12

Semilunar valves

Answer 12

Located between ventricles and arteries

Question 13

Pulmonary valve

Answer 13

Separates right ventricle and pulmonary artery

Question 14

Aortic valve

Answer 14

Separates left ventricle and aorta

Question 15

Pericardium tissue

Answer 15

Outermost protective layer of heart, contains lubricating liquid

Question 16

Epicardium tissue

Answer 16

Deepest layer of pericardium, envelops heart muscle

Question 17

Myocardium

Answer 17

Heart muscle

Question 18

Endocardium

Answer 18

Innermost, smooth layer of heart walls

Question 19

Cardiac conduction system

Answer 19

Produce and conducts electrical signal of heart

Question 20

Sinoatrial (SA) node

Answer 20

Set heart pace, sends out electrical signal cause atria to contract

Question 21

Atrioventricular (AV) node

Answer 21

Relays electrical impulse of sinoatrial node to ventricle

-impulse delayed to allow atria to fully contract and fill ventricles