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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
Anterior IV artery | Origin
Left coronary artery
25
Anterior IV artery | Course
Passes along anterior IV sulcus to apex of heart
26
Anterior IV artery | Distribution
Right and left ventricles | Anterior 2/3 of IV septum
27
Anterior IV artery | Anastomoses
Posterior IV branch of left coronary artery
28
Circumflex artery | Origin
Left coronary artery
29
Circumflex artery | Course
Passes left of AV sulcus and runs to posterior surface of heart
30
Circumflex artery | Distribution
Left atrium | Left ventricle
31
Circumflex artery | Anastomoses
Right coronary artery
32
Left marginal artery | Origin
Circumflex branch
33
Left marginal artery course
Follows left border of heart
34
Left marginal artery | Distribution
Left ventricle
35
Left marginal | Anastomoses
IV branches
36
``` Intercostal nerves (1-11) Origin ```
Anterior rami of T1-T11
37
``` Intercostal nerves (1-11) Course ```
Runs in intercostal spaces between internal and innermost layers
38
``` Intercostal nerves (1-11) Distribution ```
Muscles in skin over intercostal space | Lower nerves: skin of anterolateral abdominal wall
39
Vagus (CNX) n. | Origin
8-10 rootless from medulla of brainstem
40
Vagus (CNX) n. | Course
Superior mediastinum (posterior to SC joint) --> gives rise to recurrent laryngeal nerve --> abdomen
41
Vagus (CNX) n. | Distribution
Pulmonary plexus Esophageal plexus Cardiac plexus
42
Phrenic n. | Origin
Anterior rami of C3-C5
43
Phrenic n. | Course
Superior thoracic aperture --> mediastinal pleura --> pericardium
44
Phrenic n. | Distribution
Central portion of diaphragm
45
Recurrent laryngeal n. | Origin
Vagus n.
46
Recurrent laryngeal n. | Course
Right: loops around subclavian n. Left: loops around arch of aorta --> tracheo-esophageal groove
47
Recurrent laryngeal n. | Distribution
Intrinsic muscles of larynx (except cricothyroid) | Sensory inferior to level of vocal folds
48
Cardiac plexus | Origin
Cervical and cardiac branches of vagus n. | Sympathetic trunk
49
Cardiac plexus course
Arch of aorta/posterior surface of heart --> along coronary a. --> sinu-atrial node
50
Cardiac plexus | Distribution
Sinu-atrial node Parasympathetic fibers: slow rate/reduce force of heart, constrict coronary a. Sympathetic fibers: opposite effects
51
Pulmonary plexus | Origin
Vagus n. | Sympathetic trunk
52
Pulmonary plexus | Course
Root of lung --> extends along bronchial divisions
53
Pulmonary plexus | Distribution
Afferents: convey reflexes Parasympathetic fibers: constrict bronchioles Sympathetic fibers: dilate bronchioles
54
Esophageal plexus | Origin
Vagus n. Sympathetic ganglia Greater splanchnic n.
55
Esophageal plexus | Course
Distal to bifurcation, vagus, and sympathetic n. form the plexus around esophagus
56
Esophageal plexus | Distribution
Vagal and sympathetic fibers --> smooth muscle/glands of inferior 2/3 of esophagus
57
Ascending aorta origin
Aortic orifice of left ventricle
58
Ascending aorta | Course
Ascends 5cm to Sternal angle (becomes arch of aorta)
59
Ascending aorta branches
Right and left coronary arteries
60
Arch of aorta | Origin
Continuation of ascending aorta
61
Arch of aorta | Course
Arches posteriorly on left side of trachea, esophagus, and superior to left main bronchus
62
Arch of aorta | Branches
Brachiocephalic a. Left common carotid a. Left subclavian a.
63
Superior epigastric n. | Origin
Internal thoracic a.
64
Superior epigastric n. | Course
Rectus sheath --> deep to rectus abdominis
65
Superior epigastric n. | Distribution
Superior rectus abdominis | Superior part of anterolateral abdominal wall
66
Inferior epigastric n. | Origin
External iliac a.
67
Inferior epigastric n. | Course
Runs superiorly and enters rectus sheath | Runs deep to rectus abdominis
68
Inferior epigastric n. | Distribution
Inferior rectus abdominis | Medial part of anterolateral abdominal wall
69
Celiac trunk | Origin
Abdominal aorta (T12) distal to aortic hiatus of diaphragm
70
Celiac trunk course
Bifurcates into splenic a. and common hepatic a.
71
Celiac trunk | Distribution
Esophagus, liver, duodenum, liver/biliary apparatus, pancreas
72
Left gastric a. | Origin
Celiac trunk
73
Left gastric a. | Course
Esophageal hiatus --> gives rise to esophageal branch --> descends down lesser curvature to anastomose with right gastric a.
74
Left gastric a. | Distribution
Distal esophagus | Left portion lesser curvature of stomach
75
Splenic a. | Origin
Celiac trunk
76
Splenic a. | Course
Superior border of pancreas --> passes between layers of splenorenal lig --> hilum of spleen
77
Splenic a. | Distribution
Pancreas, spleen, greater curvature of stomach | Posterior gastric branch: posterior wall/fundas of stomach
78
Hepatic a. | Origin
Celiac trunk
79
Hepatic a. | Course
Hepatoduodenal lig --> porta hepatis --> divides into right and left hepatic arteries
80
Hepatic a. | Distribution
Liver, gallbladder, stomach, pancreas, duodenum, lobes of liver
81
Right gastric a. | Origin
Hepatic a.
82
Right gastric a. | Course
Runs along lesser curvature of stomach
83
Right gastric a. | Distribution
Right portion of lesser curvature of stomach
84
Gastroduodenal a. | Origin
Hepatic a.
85
Gastroduodenal a. | Course
Descends retroperitoneally posterior to gastroduodenal junction
86
Gastroduodenal a. | Distribution
Stomach, pancreas, 1st part duodenum, distal bile duct

Anatomy (11 decks)

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