1- Cardiovascular Anatomy Flashcards

1
Q

double-walled firoserous sac which encloses the heart and roots of great vessels

A

pericardium

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2
Q

which layer of pericardium is fused to central tendon of diaphragm

A

fibrous pericardium

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3
Q

which layer of pericardium is inelastic and protects against overfilling

A

fibrous pericardium

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4
Q

fused to internal surface of the fibrous pericardium

A

parietal layer of serous pericardium

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5
Q

aka epicardium

A

visceral layer of serous pericardium

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6
Q

where is apex located?

A

left 5th intercostal space

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7
Q

which heart chamber corresponds to apex?

A

left ventricle

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8
Q

which heart chamber corresponds to the sternocostal/anterior surface?

A

right ventricle

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9
Q

which heart chambers correspond to the diaphragmatic/inferior surface?

A

both ventricles, primarily the left

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10
Q

which heart chambers correspond to the left/pulmonary surface?

A

left ventricle, occupies the cardiac notch

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11
Q

right border is…

A

right 3rd costal cartilage to right 6th costal cartilage

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12
Q

inferior border is..

A

right 6th costal cartilage to left 5th intercostal space

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13
Q

left border is …

A

left 5th intercostal space to left second costal cartilage

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14
Q

superior border is…

A

left 2nd costal cartilage to right 3rd costal cartilage

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15
Q

what chamber corresponds with right border?

A

right atrium

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16
Q

what chambers correspond with inferior border?

A

right ventricle and apex of left ventricle

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17
Q

what chambers correspond with left border?

A

left ventricle and left auricle

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18
Q

what chambers correspond with superior border?

A

right and left auricles and conus arteriosus

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19
Q

provides barrier between atrial and ventricles for conductive system..

A

cardiac skeleton

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20
Q

what attaches to the cardiac skeleton

A

heart valves and myocardium

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21
Q

attaches aortic to pulmonary semilunar valves

A

tendon of conus arteriosus

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22
Q

attaches mitral valve to aortic semilunar valves

A

left fibrous trigone

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23
Q

attaches atrioventricular valves to aortic semilunar valves

A

right fibrous trigone

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24
Q

what is the arterial supply to the AV node?

A

right coronary a.

25
Q

what is the major supply to the SA node?

A

60% right coronary, 40% left coronary

26
Q

the marginal and posterior interventricular branch off what a.?

A

right coronary

27
Q

what are the branches off of the left coronary a.?

A

circumflex and interventricular branches

28
Q

location and speed of SA node

A

junction of SVC and right atrium

70-80 bpm

29
Q

speed of AV node

A

40-60 bpm

30
Q

location of AV node

A

posteroinferior region of interatrial septum near coronary sinus

31
Q

normal heart sounds are the result of …

A

blood turbulence upon closure of the heart valves

32
Q

where do you listen to the aortic semilunar valve?

A

right 2nd intercostal space

33
Q

where do you listen to the pulmonary semilunar valve?

A

left 2nd intercostal space

34
Q

where do you listen to the tricuspid valve?

A

lower left body of sternum

35
Q

where do you listen to the mitral valve

A

left 5th intercostal space

36
Q

functions to prevent heat build up

A

serous pericardium

37
Q

nerve supply to pericardium

A

phrenic n. (no pain -exception visceral layer)

38
Q

behind pulmonary a. and aorta (outflow)

A

transverse pericardial sinus (where to go for bypasses)

39
Q

between IVC and pulmonary vv.

A

oblique pericardial sinus

40
Q

base of heart

A

LA with minor contribution from the RA(sinus venarum)

41
Q

what is the sinus venerum?

A

smooth portion of the RA where coronary sinus enters and the two vena cavas merge

42
Q

indicates the primitive atrium

A

pectinate muscles

43
Q

transition between rough and smooth RA

A

crista terminalis

44
Q

outflow part of RV

A

conus arteriosus

45
Q

what is the moderator band

A

muscle cells involved in heart beat (on Rside not left)

46
Q

where are pectinate muscles found on the left side?

A

only in l. auricle

47
Q

“base ring” of cardiac skeleton

A

aortic valve ring

48
Q

where are the opening for the coronary aa found?

A

in aortic sinuses

49
Q

which cusp in the aortic semilunar valve does not have an opening for the coronary aa?

A

posterior cusp

50
Q

the nodal branch comes off which coronary a?

A

right

51
Q

which artery tells you ‘dominance”

A

posterior interventricular a.

52
Q

artery found on the inferior border of the heart

A

right marginal a.

53
Q

why is the left coronary artery a high danger place?

A

quickly splits into the circumflex and LAD

54
Q

artery in teh anterior interventricular groove

A

LAD aka anterior interventricular a.

55
Q

which veins do not drain into the coronary sinus

A

the anterior cardiac veins (go directly into the RA)

56
Q

how does the vagus n. get into the heart cavity

A

branches onto the great vessels

57
Q

how does symp. innervation get to heart

A

from the chain (C6/7 to T4)

58
Q

closure of AV valves

A

LUB

59
Q

closure of semilunar valves

A

DUB