chapter 15

Question 0

valve between the right atrium and right ventricle

Answer 0

tricuspid valve

Question 1

valve between the left atrium and right ventricle

Answer 1

bicuspid/mitral valve

Question 2

chamber that pumps blood to the lungs

Answer 2

right ventricle

Question 3

chamber that pumps blood into the aorta

Answer 3

left ventricle

Question 4

chamber that receives oxygenated blood from lungs

Answer 4

left atrium

Question 5

chamber that receives deoxygenated blood from the body

Answer 5

aortic valve

Question 6

valve between the right ventricle and pulmonary trunk

Answer 6

pulmonary valve

Question 7

valve between the left ventricle and aorta

Answer 7

aortic valve

Question 8

pericardium

Answer 8

membrane that surrounds and protects the heart

Question 9

superior vena cava

Answer 9

blood vessel that delivers deoxygenated blood from the head and neck to the heart

Question 10

“pacemaker”

Answer 10

sinoatrial (SA) node

Question 11

Arteriees and veins arise from this portion of thee heart

Answer 11

base

Question 12

This ventrical pumps blood to the lungs

Answer 12

right ventricle

Question 13

heart attack

Answer 13

myocardial infarction

Question 14

P wave represents this event

Answer 14

atrial depolarization followed by systole

Question 15

the first heart sound ( lubb ) us caused by closure of these valves.

Answer 15

AV valve

Question 16

parts of the pericardium

Answer 16

fibrous and serous

Question 17

outermost layer of pericardium

Answer 17

fibrous

Question 18

layer of the pericardium adjacent to the heart muscle

Answer 18

viceral

Question 19

when the atria are in systole the ventricles are in

Answer 19

diastole

Question 20

when the ventricles are in systole the AV valves are

Answer 20

closed

Question 21

heart valves

Answer 21

prevent the backflow of blood

Question 22

the T wave

Answer 22

repolarization

Question 23

venous blood (without oxygen) from the body returns to this chamber

Answer 23

right atrium

Question 24

hardening of the arteries

Answer 24

arthersclerosis

Question 25

condition caused by reduced blood flow to the myocardium

Answer 25

myocardial ischemiec

Question 26

irregular heart rhythm

Answer 26

arrhythmia

Question 27

opening in the septum between the atria and fetus

Answer 27

foramen ovale

Question 28

narrowing of a valve opening by scar tissue

Answer 28

stenosis

Question 29

different areas of the heart beating independently

Answer 29

fibrillation

Question 30

narrowing of the coronary arteries reducing blood flow to the heart; has a number of causes and is the leading cause of death in the us

Answer 30

coronary artery disease

Question 31

the term epicardium refers to this structure

Answer 31

over the heart wall

Question 32

circulation of the blood through the heart muscle is supplied by the .....

Answer 32

coronary cirulation

Question 33

cardiac muscle is known as

Answer 33

myocardium

Question 34

thickest wall of the heart chamber

Answer 34

left ventricle

Question 35

the heart beat originates in this mass of tissue

Answer 35

SA node

Question 36

structure whose job is to sequence the ventricular contractiions with the atrial contractions

Answer 36

AV node

Question 37

the electrical conducting system in the outer walls of the ventricles

Answer 37

conduction of myofibers (perkingie fibers)

Question 38

location of the SA node of the heart

Answer 38

right atrium

Question 39

the QRS spike represents this event

Answer 39

ventricular contraction

Question 40

the second heart sound (dupp) is caused by this

Answer 40

closing semilunar valves

Question 41

heart rate is monitored and regulated by this structure

Answer 41

cardiovascular center of medulla

Question 42

nerve that decreases the heart rate

Answer 42

vagus

Question 43

the heart speeds up when we stand up quickly due to receptors here that detect blood pressure changes

Answer 43

corotid artery

Question 44

cardiac cycle

Answer 44

relaxation artial systole ventricular systole

Question 45

coronary arteries branch off of the

Answer 45

aorta

Question 46

the action of _____ causes audible heart sounds

Answer 46

valves

Question 47

improperly closing valves

Answer 47

cause heart murmurs

Question 48

the period of relaxation in the cardiac cycle

Answer 48

diastole

Question 49

a heart that is stretched just before contraction will contract stronger according to this law

Answer 49

degree of stretch Frank - Starling

Question 50

the contraction phase of the heart

Answer 50

systole

Question 51

the good chemicals that take cholesterol to liver are

Answer 51

high density lipo protiens (HDL's)

Question 52

what causes the semilunar valves to close

Answer 52

drop in blood pressure

Question 53

the volume of blood ejected from each ventricle with one contraction of the heart

Answer 53

70ML

Question 54

the amount of blood ejected by each ventricle each minute

Answer 54

cardiac output

Question 55

the term describing heart chamber contraction is ____.

Answer 55

systole

Question 56

name several chemicals which would act to slow the heart rate

Answer 56

Ca+2 Na+1 and K+1

Question 57

the term describing heart chamber relaxation is

Answer 57

diastole

Question 58

chest pain caused from ischemia

Answer 58

angina pectoris

Question 59

inflammation of the heart covering

Answer 59

pericarditis