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Flashcards in middle mediastinum Deck (125):
1

the pericardium is a ______ sac that encloses the heart and roots of the great vessels

fibroserous

2

where does the pericardium lie

middle mediastinum

3

anterior boundary of the middle mediastinum

body of sternum and 2-6th costal cartilage

4

posterior boundary of the mid mediastinum

5-8th TV

5

superior bound of mid medias

great bld vessels

6

inf bound of mid medias

diaphragm

7

function of mid mediastinum

restrict excesive movements
lubricated container

8

strong fibrous art of the sac

fibrous ericardium

9

where is the fibrous pericard firmly attached below

central tendon via pericardio-phernic ligament

10

where is the fibrous pericard attached anteriorly

sternum via sternopericardial ligaments

11

great bld vessels that pass thru the mid medias

aorta
pulmo trunk
sup inf vena cava
pulmo veins

12

lines the fibrous pericardium and coats the heart

serous pericardium

13

the serous pericardium is divided into

parietal and visceral layers

14

lines the fibrous pericardium and is reflected around the roots of the great vessels and becomes continuous with the other layer at the base of the heart

parietal layer

15

where does the parietal and visceral layer unite

base of the heart

16

layer closely applied to the heart

visceral layer

17

slitlike space between the parietal and visceral layers

pericardial cavity

18

amount of pericardial fluid

around 50 mL

19

purpose of pericardial fluid

lubricant

20

formed as a consequence of the way the heart bends during dev't

pericardial sinus

21

recess due to reflection of the serous pericardium around large veins; at the posterior surface

oblique sinus

22

short passage between the reflection of serous pericardium around the aorta and pulmo trunks and around large veins

transverse sinus

23

NS of firbous and parietal layer of the serous pericardium

phrenic nerve

24

NS of visceral layer

sympa trunks and vagus nerve

25

hollow organ somewhat pyramidal in shape

heart

26

the ehart lies freely where

in pericardium

27

the heart is connected to the heart vessels only where

base

28

the hearts rests on its what

diaphragmatic surface

29

surfaces of the heart

sternocostal
diaphragmatic
base

30

the apex of the heart is directed where

downward forward to the left

31

right and left border of the sternocostal surface

right atrium and left ventricle

32

right ventricle and left ventricle is separated by

posterior and anterior interventricular groove

33

right atrium and left ventricle is separated by

atrioventricular groove

34

formed by the right and left ventricle

diaphragmatic surface

35

kelan kasama ang right atrium sa diaphragmatic surface

kpag bukas ung inferior vena cava

36

where does 4 pulmonary veins open

base (posterior)

37

surface formed by left atrium

base (posterior)

38

surface formed by the left ventricle

apex

39

sang level ang apex

5th left ICS 3.5 inches from midline

40

clinical auscultation of pulmonary valve

medial end of 2nd left ICS

41

clinical auscultation of aortic valve

medial end of 2nd right ICS

42

clinical auscultation of mitral valve

apex (5th left midclavicular ICS)

43

clinical auscultation of tricuspid valve

6th ICS (lower end of sternum body)

44

surface anatomy of pulmonary valve

3rd left rib medial end

45

surface anatomy of aortic valve

3rd left parasternal ICS

46

surface anatomy of mitral valve

4th left parasternal rib

47

surface anatomy of tricuspid valve

4th right parasternal ICS

48

right border of the heart

formed by the right atrium
3rd to 6th ICS
3cm and 1.5cm resp. from midternal line

49

left border of the heart

formed by the left auricle and left ventricle
2nd-5th left ICS

50

superior border fo the heart

formed by the great vessels of the heart
3rd right costal and 2nd left costal

51

inferior border of the heart

formed by right ventricle and apex
6th right ICS to 5th midclav ICS

52

origin of the right coronary artery

anterior aortic sinus of the ascending aorta

53

commencement of right coronary artery

between pulmo trunk and right auricle

54

termination of right coronary artery

posterior interventricular groove

55

where does the right and left coronary arteries anastomose

posterior intraventricular groove

56

branches of the right coronary artery

right conus
anterior and posterior ventricular branches
posterior interventricular (descending) artery
atrial branches

57

what supplies the AV node

large septal branch

58

which coronary artery is larger

left

59

left coronary artery supplies what

left atrium ventricle and septum

60

origin of takki the left coronary artery

left posterior sinus of the ascending aorta

61

commencement of the left coronary artery

bet. pulmonary trunk and left auricle

62

termination of the left coronary artery

atrioventricular groove

63

branches of the left coronary artery

anterior interventricular branch
circumflex artery

64

large branch of the circumflex artery supplying left margin of the left ventricle t the apex

left marginal artery

65

mar arise directly from the left coronary artery trunk

left diagonal artery

66

supplises the pulmonary conus

left conus artery

67

supply the left atrium

atrial brnches

68

collateral circulation between branches of the right and left coronary arteries

coronary artery anastomosiss

69

arterial supply of the SA node

right coronary artery

70

arterial supply of the AV nod

right coronary artery

71

arterial supply of the LBB

right and left coronary arteries

72

arterial supply of the RBB

left coronary artery

73

principal drainage of the heart walls

coronary sinus

74

where does the coronary sinus drain into

right atrium

75

where does the coronary sinus lie

posterior part of the atrioventricular groove (coronary sulcus)

76

the coronary sinus is a continuation of the

great cardiac vein

77

tributaries of the coronary sinus

small and middle cardiac vein

78

the ____ drain directly into the right atrium

anterior cardiac vein

79

the small veins that drain directly to the heart chambers

vena cordis minimae

80

fibers of the cardiac plexus

sympa and parasympa

81

innervates the heart via sympa and parasympa of the autonomic nervous system

cardiac plexus

82

cardiac plexus situated below the arch of the aorta (vagus)

superficial cardiac plexus

83

the superficial cardiac plexus is composed of the

vagus

84

the deep cardiac plexus is composed of the

vagus and sympa trunk

85

where is the deep cardiac plexus situated

in front of the trachea on the bifurcation

86

where is the superficial cardiac plexus situated

below arch of the aorta

87

saan galing ung sympla supply ng heart

cervical and upper thoracic portions of the sympathetic trunks

88

saan galing parasympa supply ng heart

vagus

89

fibers responsible for the cardiac acceleration, increased force of cotnraction and coronary dilation

postganglionic sympa fibers

90

results in reduction in rate and force of contraction, arterial constriction

postganglionic parasympa

91

the afferent fibers run along with what

sympa nerves
vagus

92

run with sympa nerves, carry nervous impulses that normally do not reach consciousness (pain impulse)

afferent fibers

93

the afferent fibers that run with the vagus is responsible for what

cardiovascular reflex

94

the afferent fiber responsible for the cardiovascular reflex run with what

vagus

95

great vessels of the heart includes

ascending aorta
pulmonary trunk
pulmo vein
superior and inferior vena cava

96

the ascending aorta is enclosed in a sheath of serous pericardium with what

pulmo trunk

97

the ascending aorta lies in which pericardium

fibrous

98

how many bulges meron sa ascending aorta and saan sila

3 bulges one behind each aortic valve cusp

99

origin of the ascending aorta

left ventricle

100

commencement of the ascending aorta

base of the left ventricle

101

termination of the ascending aorta

behind right half of sternum (level of sternal angle)

102

branches of the ascending aorta

left and right coronary artery

103

conveys deoxy blood from teh right ventricle to the lungs

pulmo trunk

104

how long pulmo trunk

2inches (5cm)

105

pulmo trunk divides into what

left and right pulmonary artery

106

together with the ascending aorta, the pulmo trunk is enclosed in ___ and ____

fibrous pericardium and sheat of serous pericardium

107

origin of the pulmo trunk

upper part of the right ventricle

108

termination of the pulmo trunk

concavity of the aortic arch

109

branches of the pulmo trunk

right and let pulmo artery

110

left or right: runs behind the ascending aorta

right pulmo art

111

left or right: runs in front of the ascending aorta

left pulmo art

112

fibrous band connecting the bifurcation of the pulmonary trunk to the lower concave surface of the aortic arch

ligamentum arteriosum

113

in fetus, conducts blood from the pulmonary trunk to the aorta

ductus arteriosum

114

what hooks around the ligamentum arteriosum

left recurrent laryngeal nerve

115

what kind of blood pulmonary veins carry

oxygenated

116

the superior vena cava contains all bloo from

head neck upper limbs

117

how is the sup vena cava formed

union of left and right brachiocephalic veins

118

joins the posterior aspect of the sup vena cava

vena aygos

119

commecnment of the sup vena cava

1st chondrosternal joint

120

termination of the sup vena cava

3rd costal cart @ right atrium

121

the inferior vena cava pierces what

central tendom of diaphragm

122

what level nagpierce si inf vena cava sa central tendon

opposite TV8

123

where does the inf vena cava enter

lowest part of the right atrium

124

commencement of the inf vena cava

level of LV5

125

termination of the inf vena cava

3rd costal cart @ right atrium