Heart

Question 1

Answer 1

chordae tendineae

Question 2

cardiac output equals ______ times ____

Answer 2

heart rate; stroke volume

Question 3

volume of blood pumped out of blood with each contraction

Answer 3

stroke volume

Question 4

amount of blood pumped out of heart per minute

Answer 4

cardiac output

Question 5

During ejection, AV valves are ___ and semilunar valves are ___

Answer 5

closed; open

Question 6

Chordae tendineae ONLY attached to these valves

Answer 6

AV

Question 7

the heart is in the _____, which is in the ____ cavity

Answer 7

mediastinum; thoracic

Question 8

A person would experience these two things if their left ventricle was damaged from a heart attack

Answer 8

left ventricle pumps less blood than right, blood accumulates in pulmonary vessels

Question 9

where is the base in the heart?

Answer 9

beneath 2nd rib

Question 10

where is the apex of the heart located in relation to the ribs?

Answer 10

5th intercostal space

Question 11

two types of tissues in heart

Answer 11

contractile and conductive

Question 12

two primary functions of heart

Answer 12

1) pumping blood
2) fluid level regulation via hormones

Question 13

the covering of the heart is called the

Answer 13

pericardium

Question 14

two layers of the pericardium

Answer 14

fibrous and serous

Question 15

what does the fibrous pericardium do?

Answer 15

anchors heart and makes sure heart doesn’t stretch too much

Question 16

what are the three parts of the serous pericardium from superficial to deep?

Answer 16

parietal pericardium
pericardial cavity
visceral pericardium

Question 17

what is the function of the pericardial cavity?

Answer 17

reduces friction due to serous fluid inside

Question 18

what is the visceral pericardium made of?

Answer 18

connective tissue and epithelium

Question 19

what is the function of the visceral pericardium?

Answer 19

reduces friction and attaches to heart

Question 20

the visceral pericardium is also called the

Answer 20

epicardium

Question 21

this layer of pericardium is also the outermost layer of the heart wall

Answer 21

visceral/epicardium

Question 22

Answer 22

1. fibrous
2. parietal
3. pericardial cavity
4. visceral

Question 23

3 layers of heart wall from superficial to deep

Answer 23

1. epicardium
2. myocardium
3. endocardium

Question 24

what is the myocardium made of and what is its function?

Answer 24

cardiac muscle; pumping function

Question 25

what is the endocardium made of?

Answer 25

connective tissue and epithelium

Question 26

this layer of the heart wall has Purkinje fibers

Answer 26

endocardium

Question 27

Answer 27

Question 28

heart's four chambers

Answer 28

right and left atriums, right and left ventricles

Question 29

this separates the right and left sides of the heart

Answer 29

interventricular septum

Question 30

what is the purpose of the heart's valves?

Answer 30

to insure there is not blood backflow

Question 31

chordae tendineae are attached to ____ muscles. When those muscles contract, it holds closed ____ in place

Answer 31

papillary; AVs

Question 32

Answer 32

Question 33

Answer 33

Question 34

this valve is between the right atrium and right ventricle

Answer 34

tricuspid

Question 35

this valve is between the right ventricle and the path to the lungs

Answer 35

pulmonary valve

Question 36

this valve is between the left atrium and the left ventricle

Answer 36

mitral

Question 37

this valve is between the left ventricle and the exit point to the heart

Answer 37

aortic

Question 38

Answer 38

Question 39

What is the skeleton of heart

Answer 39

ring of dense connective tissue that surround pulmonary truck and aorta

Question 40

what are the two functions of the skeleton of the heart?

Answer 40

1. provide attachments for valves and fibers 2. prevent outlets of atrial and ventricles from dilating too much

Question 41

skeleton of heart

Answer 41

Question 42

how and where does blood enter the heart?

Answer 42

superior and inferior vena cava and coronary sinus go into right atrium

Question 43

when the right atrium contracts, the blood goes through the ___ to the __ __

Answer 43

tricuspid/right AV to right ventricle

Question 44

when the right ventricle contracts, the blood goes through the ___ to the ___ ___

Answer 44

pulmonary semilunar valve to pulmonary trunk

Question 45

pulmonary trunk branches into

Answer 45

left and right pulmonary arteries

Question 46

when the right ventricle contracts, it closes the ___ valve

Answer 46

tricuspid

Question 47

pulmonary arteries have what type of blood?

Answer 47

O2-poor

Question 48

where does gas exchange in the lungs happen?

Answer 48

alveolar capillaries

Question 49

O2-rich blood returns to left atrium via

Answer 49

pulmonary veins

Question 50

O2-rich blood returns to the ____atrium

Answer 50

left

Question 51

when the left atrium contracts, the blood goes through the ___ to the ____ __

Answer 51

mitral/bicuspid valve; left ventricle

Question 52

when the left ventricle contracts, it closes the ___ valve

Answer 52

mitral

Question 53

the last valve blood passes through in the heart

Answer 53

aortic semilunar valve

Question 54

name (in order) the 12 structures in the heart and its connected parts blood passes through

Answer 54

1. right atrium 2. tricuspid valve 3. right ventricle 4. pulmonary semilunar valve 5. pulmonary trunk 6. pulmonary arteries 7. alveolar capillaries 8. pulmonary veins 9. left atrium 10. mitral/bicuspid valve 11. left ventricle 12. aortic semilunar valve

Question 55

these first branches of the aorta go back to the heart to supply it with blood

Answer 55

right and left coronary arteries

Question 56

blood flow to the heart increases when the ventricles are ____

Answer 56

relaxed

Question 57

the branches of the coronary arteries eventually lead to ____ in the ____

Answer 57

capillaries; myocardium

Question 58

parts of coronary arteries with detours built in in case of blockage

Answer 58

Aka - Moses; taking a detour Anastomoses

Question 59

these drain blood back into coronary sinuses

Answer 59

cardiac veins

Question 60

protrusions on heart near base

Answer 60

auricles

Question 61

Answer 61