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Anatomy > Veins, Arteries, Nerves: Test 3 > Flashcards

Veins, Arteries, Nerves: Test 3 Flashcards

0
Q

Posterior intercostal artery

course

A

Pass between internal and innermost intercostal muscles

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1
Q

Origin of posterior intercostal arteries

A

Supreme intercostal arteries (intercostal spaces 1 and 2)

Thoracic aorta

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2
Q

Posterior intercostal artery

distribution

A

Intercostal muscles/overlying skin

Parietal pleura

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3
Q

Origin of anterior intercostal artery

A 
Internal thoracic arteries (intercostal spaces 1-6)
Musculophrenic arteries (intercostal spaces 7-9)
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4
Q

Anterior intercostal artery

Course

A

Pass between internal and innermost intercostal muscles

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5
Q

Anterior intercostal artery

Distribution

A

Intercostal muscles/overlying skin

Parietal pleura

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6
Q

Internal thoracic artery

Origin

A

Subclavian artery

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7
Q

Internal thoracic artery

Course

A

Lateral to sternum –> between costal cartilages/internal thoracic muscles –> divides into superior epigastric a. and musculophrenic a.

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8
Q

Internal thoracic artery

Distribution

A

Intercostal spaces 1-6 (via anterior intercostal a.)

Intercostal spaces 7-9 (via musculophrenic a.)

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9
Q

Right coronary artery

Origin

A

Right aortic sinus

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10
Q

Right coronary artery

Course

A

Follows coronary (AV) sulcus between atria and ventricles

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11
Q

Right coronary artery

Distribution

A

Right atrium
SA/AV nodes
Posterior IV septum

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12
Q

Right marginal artery

Origin

A

Right coronary artery

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13
Q

Right marginal artery

Course

A

Passes to inferior margin of heart and apex

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14
Q

Right marginal artery

Anastomoses

A

IV branches

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15
Q

Right coronary artery

Anastomoses

A

Circumflex and anterior IV branches (left coronary artery)

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16
Q

Posterior IV artery

Origin

A

Right coronary artery

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17
Q

Posterior IV artery

Course

A

Runs in posterior IV sulcus to apex of heart

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18
Q

Posterior IV artery

Distribution

A

Right and left ventricles

Posterior 1/3 of septum

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19
Q

Posterior IV artery

Anastomoses

A

Anterior IV branches of left coronary artery (at apex)

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20
Q

Left coronary artery

Origin

A

Left aortic sinus

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21
Q

Left coronary artery

Course

A

Runs in AV sulcus and gives off anterior IV and circumflex branches

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22
Q

Left coronary artery

Distribution

A

Left atrium/ventricle
IV septum
AV bundles

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23
Q

Left coronary artery

Anastomoses

A

Right coronary artery

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24
Q

Anterior IV artery

Origin

A

Left coronary artery

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25
Q

Anterior IV artery

Course

A

Passes along anterior IV sulcus to apex of heart

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26
Q

Anterior IV artery

Distribution

A

Right and left ventricles

Anterior 2/3 of IV septum

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27
Q

Anterior IV artery

Anastomoses

A

Posterior IV branch of left coronary artery

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28
Q

Circumflex artery

Origin

A

Left coronary artery

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29
Q

Circumflex artery

Course

A

Passes left of AV sulcus and runs to posterior surface of heart

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30
Q

Circumflex artery

Distribution

A

Left atrium

Left ventricle

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31
Q

Circumflex artery

Anastomoses

A

Right coronary artery

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32
Q

Left marginal artery

Origin

A

Circumflex branch

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33
Q

Left marginal artery course

A

Follows left border of heart

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34
Q

Left marginal artery

Distribution

A

Left ventricle

35
Q

Left marginal

Anastomoses

A

IV branches

36
Q 
Intercostal nerves (1-11)
Origin
A

Anterior rami of T1-T11

37
Q 
Intercostal nerves (1-11)
Course
A

Runs in intercostal spaces between internal and innermost layers

38
Q 
Intercostal nerves (1-11) 
Distribution
A

Muscles in skin over intercostal space

Lower nerves: skin of anterolateral abdominal wall

39
Q

Vagus (CNX) n.

Origin

A

8-10 rootless from medulla of brainstem

40
Q

Vagus (CNX) n.

Course

A

Superior mediastinum (posterior to SC joint) –> gives rise to recurrent laryngeal nerve –> abdomen

41
Q

Vagus (CNX) n.

Distribution

A

Pulmonary plexus
Esophageal plexus
Cardiac plexus

42
Q

Phrenic n.

Origin

A

Anterior rami of C3-C5

43
Q

Phrenic n.

Course

A

Superior thoracic aperture –> mediastinal pleura –> pericardium

44
Q

Phrenic n.

Distribution

A

Central portion of diaphragm

45
Q

Recurrent laryngeal n.

Origin

A

Vagus n.

46
Q

Recurrent laryngeal n.

Course

A

Right: loops around subclavian n.
Left: loops around arch of aorta –> tracheo-esophageal groove

47
Q

Recurrent laryngeal n.

Distribution

A

Intrinsic muscles of larynx (except cricothyroid)

Sensory inferior to level of vocal folds

48
Q

Cardiac plexus

Origin

A

Cervical and cardiac branches of vagus n.

Sympathetic trunk

49
Q

Cardiac plexus course

A

Arch of aorta/posterior surface of heart –> along coronary a. –> sinu-atrial node

50
Q

Cardiac plexus

Distribution

A

Sinu-atrial node
Parasympathetic fibers: slow rate/reduce force of heart, constrict coronary a.
Sympathetic fibers: opposite effects

51
Q

Pulmonary plexus

Origin

A

Vagus n.

Sympathetic trunk

52
Q

Pulmonary plexus

Course

A

Root of lung –> extends along bronchial divisions

53
Q

Pulmonary plexus

Distribution

A

Afferents: convey reflexes
Parasympathetic fibers: constrict bronchioles
Sympathetic fibers: dilate bronchioles

54
Q

Esophageal plexus

Origin

A

Vagus n.
Sympathetic ganglia
Greater splanchnic n.

55
Q

Esophageal plexus

Course

A

Distal to bifurcation, vagus, and sympathetic n. form the plexus around esophagus

56
Q

Esophageal plexus

Distribution

A

Vagal and sympathetic fibers –> smooth muscle/glands of inferior 2/3 of esophagus

57
Q

Ascending aorta origin

A

Aortic orifice of left ventricle

58
Q

Ascending aorta

Course

A

Ascends 5cm to Sternal angle (becomes arch of aorta)

59
Q

Ascending aorta branches

A

Right and left coronary arteries

60
Q

Arch of aorta

Origin

A

Continuation of ascending aorta

61
Q

Arch of aorta

Course

A

Arches posteriorly on left side of trachea, esophagus, and superior to left main bronchus

62
Q

Arch of aorta

Branches

A

Brachiocephalic a.
Left common carotid a.
Left subclavian a.

63
Q

Superior epigastric n.

Origin

A

Internal thoracic a.

64
Q

Superior epigastric n.

Course

A

Rectus sheath –> deep to rectus abdominis

65
Q

Superior epigastric n.

Distribution

A

Superior rectus abdominis

Superior part of anterolateral abdominal wall

66
Q

Inferior epigastric n.

Origin

A

External iliac a.

67
Q

Inferior epigastric n.

Course

A

Runs superiorly and enters rectus sheath

Runs deep to rectus abdominis

68
Q

Inferior epigastric n.

Distribution

A

Inferior rectus abdominis

Medial part of anterolateral abdominal wall

69
Q

Celiac trunk

Origin

A

Abdominal aorta (T12) distal to aortic hiatus of diaphragm

70
Q

Celiac trunk course

A

Bifurcates into splenic a. and common hepatic a.

71
Q

Celiac trunk

Distribution

A

Esophagus, liver, duodenum, liver/biliary apparatus, pancreas

72
Q

Left gastric a.

Origin

A

Celiac trunk

73
Q

Left gastric a.

Course

A

Esophageal hiatus –> gives rise to esophageal branch –> descends down lesser curvature to anastomose with right gastric a.

74
Q

Left gastric a.

Distribution

A

Distal esophagus

Left portion lesser curvature of stomach

75
Q

Splenic a.

Origin

A

Celiac trunk

76
Q

Splenic a.

Course

A

Superior border of pancreas –> passes between layers of splenorenal lig –> hilum of spleen

77
Q

Splenic a.

Distribution

A

Pancreas, spleen, greater curvature of stomach

Posterior gastric branch: posterior wall/fundas of stomach

78
Q

Hepatic a.

Origin

A

Celiac trunk

79
Q

Hepatic a.

Course

A

Hepatoduodenal lig –> porta hepatis –> divides into right and left hepatic arteries

80
Q

Hepatic a.

Distribution

A

Liver, gallbladder, stomach, pancreas, duodenum, lobes of liver

81
Q

Right gastric a.

Origin

A

Hepatic a.

82
Q

Right gastric a.

Course

A

Runs along lesser curvature of stomach

83
Q

Right gastric a.

Distribution

A

Right portion of lesser curvature of stomach

84
Q

Gastroduodenal a.

Origin

A

Hepatic a.

85
Q

Gastroduodenal a.

Course

A

Descends retroperitoneally posterior to gastroduodenal junction

86
Q

Gastroduodenal a.

Distribution

A

Stomach, pancreas, 1st part duodenum, distal bile duct

Anatomy (11 decks)

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