Gross anatomy of the heart and the coronary circulation L7

Question 1

4 chambers of the heart

Answer 1

right atrium
left atrium
right ventricle
left ventricle

Question 2

great vessels

Answer 2

aorta
superior vena cava
inferior vena cava
pulmonary arteries 
pulmonary vein

Question 3

roughy where does the heart sit

Answer 3

T5-T8 middle mediastinum
3rd- 6th costal cartilage
2/3 left of midline

Question 4

pericardium of heart

Answer 4

fibrous pericardium 
parietal pericardium 
visceral pericardium 
myocardium 
endocardium

Question 5

3 layers of heart

Answer 5

visceral pericardium (epicardium)
myocardium 
endocardium

Question 6

2 layers of serous pericardium

Answer 6

parietal pericardium

visceral pericardium

Question 7

apex of the heart=

Answer 7

left ventricle

Question 8

base of the heart=

Answer 8

left atrium

Question 9

sternal surface=

Answer 9

right ventricle

Question 10

diaphragmatic surface=

Answer 10

left+ right ventricle

Question 11

general atria shiz

Answer 11

thin walled receiving chambers, fill the ventricles

important in setting the cardiac pace 60bpm

Question 12

general ventricle shiz

Answer 12

thick muscular walls

slow pace 40bpm

Question 13

where does the right atrium receive blood from

Answer 13

superior and inferior vena cava

Coronary sinus

Question 14

where does the coronary sinus drain into

Answer 14

the right atria

Question 15

what is the smooth wall atria called

Answer 15

sinus venarum

Question 16

what is the rough wall of the atria covered with

Answer 16

pectinate muscles

Question 17

what separates the smooth and rough walls interiorly in the atria

Answer 17

crista terminalis

Question 18

what separates the smooth and rough walls exteriorly in the atria

Answer 18

sulcus terminalis

Question 19

what does the right atrium empty into

Answer 19

the right ventricle via tricuspid valve

Question 20

what drains into the left atrium

Answer 20

4 pulmonary veins

Question 21

what does the left atrium empty into

Answer 21

the left ventricle via mitral valve

Question 22

how many cusps does the mitral valve have

Answer 22

2 cusps (bicuspid)

Question 23

what are the raised bundles of cardiac muscle called in the ventricles

Answer 23

trabeculae carnae (prominent)

Question 24

what connect the ventricles to the valves

Answer 24

papillary muscles and chornae tendineae

Question 25

which ventricles is larger with thicker walls

Answer 25

left

Question 26

what are the valves between the ventricles and great vessels called

Answer 26

semi-luna valve

Question 27

where do all cardiac valves lie

Answer 27

in the same plane

Question 28

how many valves are aortic and pulmonary

Answer 28

tricuspid

Question 29

how many sinuses does the aorta have

Answer 29

3

Question 30

name the 3 aortic sinuses

Answer 30

right aortic sinus (anterior) left aortic sinus (left posterior) posterior aortic sinus (right posterior)

Question 31

where does the right coronary artery come from

Answer 31

right aortic sinus

Question 32

where does the left coronary artery come from

Answer 32

left aortic sinus

Question 33

when do the coronary arteries fill

Answer 33

during diastole

Question 34

main branches off left coronary artery

Answer 34

circumflex | left anterior descending

Question 35

where does the circumflex supply blood to

Answer 35

left atrium, side and back of left ventricle

Question 36

where does left anterior descending supply blood to

Answer 36

front and bottom left ventricle and the front inter-ventricular septum

Question 37

what is the left anterior descending also called

Answer 37

the widow maker

Question 38

right coronary artery branches into

Answer 38

marginal artery and posterior descending artery

Question 39

what does the right coronary artery supply

Answer 39

SA node in 60% of people and AV node in 80%

Question 40

where does the marginal artery branch off to

Answer 40

inferior border to apex

Question 41

what shape is formed from the marginal and right coronary artery

Answer 41

L shape

Question 42

what does the great cardiac vein accompany

Answer 42

left anterior descending

Question 43

what does the middle cardiac vein accompany

Answer 43

posterior descending

Question 44

what does the small cardiac vein accompany

Answer 44

marginal artery

Question 45

where does the oblique cardiac vein go

Answer 45

descends from L atrium

Question 46

which cardiac veins drain into the coronary sinus

Answer 46

great, middle, small and oblique