Chapter 22: The Heart

Question 1

What does the right side of the heart do?

Answer 1

receives blood from body & pumps out to lungs

Question 2

pulmonary circulation consists of..

Answer 2

pulmonary veins & arteries, right atrium & right ventricle

Question 3

What does the left side of the heart do?

Answer 3

receives blood from lungs & pumps out to body

Question 4

systemic circulation consists of..

Answer 4

aorta to systemic arteries, systemic veins, left atrium & left ventricle

Question 5

the heart is surrounded by a fibrous sac called..

Answer 5

pericardium

Question 6

forms a thick outer layer of connective tissue

Answer 6

fibrous pericardium

Question 7

serous membrane attached directly to the fibrous layer

Answer 7

parietal pericardium

Question 8

serous membrane that forms that the outer layer of the heart wall

Answer 8

visceral pericardium

Question 9

contains serous fluid

Answer 9

pericardial cavity

Question 10

which side between the two ventricles is thicker?

Answer 10

left side

Question 11

ventricles are separated by..

Answer 11

interventricular septum

Question 12

irregular muscle ridges of each ventricle

Answer 12

trabeculae carneae

Question 13

atria are separated by..

Answer 13

interatrial septum

Question 14

hole where blood from right atrium goes into left atrium; closes as we get older so it is just a depression

Answer 14

fossa ovalis

Question 15

irregular muscle ridges on the inside of each atrium

Answer 15

pectinate muscles

Question 16

heart sounds are caused by..

Answer 16

closing of valves (AV valves & semilunar valves)