Heart Anatomy

Question 1

where is the heart located

Answer 1

in the mediastinum in the thoracic cavity

Question 2

what is the area between the lungs called

Answer 2

mediastinum

Question 3

how much of the heart lies to the left

Answer 3

2/3

Question 4

wider top of the heart

Answer 4

base

Question 5

base attached to

Answer 5

great vessels

Question 6

heart’s inferior end

Answer 6

apex

Question 7

qualities of apex

Answer 7

tilts to the left

relatively pointed

Question 8

adult heart size

Answer 8

clenched fist

Question 9

which side of heart receives deoxygenated blood from the body

Answer 9

right

Question 10

right side of heart receives

and pumps it through

Answer 10

deoxygenated blood from the body

pulmonary circuit

Question 11

oxygenated blood from lungs goes to ____ side of heart

Answer 11

left

Question 12

where does left side of heart send oxygenated blood

Answer 12

systemic circuit

into rest of body

Question 13

heart wall layers of tissues

Answer 13

epicardium
myocardium
endocardium

Question 14

pericardium

Answer 14

double-walled sac surrounding heart

Question 15

pericardium attached to

Answer 15

diaphragm below and walls of great vessels above

Question 16

epicardium
myocardium
endocardium

Answer 16

three layers of heart wall tissue

Question 17

epicardium

Answer 17

thin outer membrane with fat deposits that fill the grooves in the heart surface and protect coronary vessels

Question 18

myocardium

Answer 18

thick, middle layer of heart wall composed of caridac muscle tissue

Question 19

endocardium

Answer 19

inner heart wall layer consisting of simple squamous endothelium in a membrane called endothelium

Question 20

outer heart wall layer

Answer 20

epicardium

Question 21

middle heart wall layer

Answer 21

myocardium

Question 22

inner heart wall layer

Answer 22

endocardium

Question 23

how many chambers in heart

Answer 23

4

Question 24

chambers seperate what

Answer 24

oxygenated blood from deoxygenated blood

Question 25

atria

Answer 25

two top chambers in heart | singular- atrium

Question 26

ventricles

Answer 26

two bottom chambers in heart

Question 27

blood vessels that return blood to the heart

Answer 27

veins

Question 28

vessels that carry blood away from heart

Answer 28

arteries

Question 29

which atrium receives venous blood from systemic and coronary circuits

Answer 29

right

Question 30

flap-like extensions with cavities continuous with the atria

Answer 30

auricles

Question 31

wall between atria

Answer 31

interatrial septum

Question 32

returns venous blood from head and neck region

Answer 32

superior vena cava

Question 33

returns venous blood from body below neck

Answer 33

inferior vena cava

Question 34

opening that collects venous blood from the coronary circulation

Answer 34

coronary sinus

Question 35

collects deoxygenated blood from right atrium

Answer 35

right ventricle

Question 36

sends deoxygenated blood through pulmonary trunk and arteries to lungs

Answer 36

right ventricle

Question 37

forms most of the base of the heart

Answer 37

left atrium

Question 38

four _____ return oxygenated blood from pulmonary circuit to left atrium

Answer 38

pulmonary veins

Question 39

forms apex of heart

Answer 39

left ventricle

Question 40

receives blood from left atrium

Answer 40

left ventricle

Question 41

pumps blood through aorta

Answer 41

left ventricle

Question 42

wall between ventricles

Answer 42

interventricular septum

Question 43

thin flaps of tissue that prevent backflow in heart

Answer 43

valves

Question 44

regulate blood flow from atria to ventricles

Answer 44

atrioventricular (AV) valves

Question 45

atrioventricular valve on right side, three flaps

Answer 45

tricuspid AV valve

Question 46

atrioventricular valve on left side, two flaps

Answer 46

bicuspid/mitral AV valve

Question 47

connects valves to papillary muscles on floor of ventricles

Answer 47

chordae tendineae

Question 48

chordae tendineae connects valves to

Answer 48

papillary muscles on floor of ventricles

Question 49

papillary muscles contract on chordae tendineae and...

Answer 49

prevent backflow of blood into the atria when ventricles contract

Question 50

regulate flow of blood from ventricles into aorta and pulmonary trunk

Answer 50

semilunar valves

Question 51

valve that controls flow from right ventricle into pulmonary trunk

Answer 51

pulmonary semilunar

Question 52

valve that controls blood flow from left ventricle into aorta

Answer 52

aortic semilunar

Question 53

coronary circulation system

Answer 53

supply of arteries and capillaries that deliver blood to every cell in myocardium cardiac muscle

Question 54

system of arteries and capillaries that deliver blood to every cell in cardiac muscle of myocardium

Answer 54

coronary circulation system