mediastinum Flashcards

1
Q

superior mediastinum boundaries

A
  • manubrium
  • transverse thoracic plane
  • anterior surface of the bodies of vertebrae T1-T4
  • thoracic inlet
  • parietal plura
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2
Q

superior mediastinum contents

A
  • lower end of sternohyoid and sternothyroid muscles
  • remnants of the thymus gland
  • brachiocephalic veins and the superior vena cava
  • arch of the aorta
  • vagus, cardiac, phrenic, and recurrent laryngeal nerve
  • trachea, oesophagus, and thoracic duct
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3
Q

superior mediastinum boundaries - manubrium

A
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4
Q

superior mediastinum boundaries - transverse thoracic plane

A
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5
Q

superior mediastinum boundaries - anterior surface of the bodies of vertebrae T1-T4

A
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6
Q

superior mediastinum boundaries - thoracic inlet

A
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7
Q

superior mediastinum boundaries - parietal pleura

A
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8
Q

superior mediastinum contents - lower ends of sternohyoid and sternothyroid muscle

A
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9
Q

superior mediastinum contents - remnants of the thymus gland

A
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10
Q

superior mediastinum contents - brachiocephalic veins and the superior vena cava

A
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11
Q

superior mediastinum contents - arch of the aorta

A
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12
Q

superior mediastinum contents - vagus, cardiac, phrenic, and recurrent laryngeal nerves

A
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13
Q

superior mediastinum contents - trachea, oesophagus, and thoracic duct

A
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14
Q

anterior mediastinum boundaries list

A
  • body of the sternum
  • pericardium
  • transverse thoracic plane
  • diaphragm
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15
Q

anterior mediastinum content list

A
  • inferior extension of the thymus gland
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16
Q

in which age group is the inferior extension of the thymus gland usually visible in the anterior mediastinum

A

childen

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17
Q

anterior mediastinum boundaries - body of the sternum

A
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18
Q

anterior mediastinum boundaries - pericardium

A
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19
Q

anterior mediastinum boundaries - transverse thoracic plane

A
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20
Q

anterior mediastinum boundaries - diaphragm

A
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21
Q

middle mediastinum boundaries list

A
  • transverse thoracic plane
  • pericardium (anteriorly and posteriorly)
  • mediastinal pleural on each side
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22
Q

middle mediastinum content list

A
  • heart and pericardium
  • ascending aorta
  • lower half of svc (receiving part of azygos vein)
  • tracheal bifurcation and both main bronchi
  • superior and inferior pulmonary veins
  • phrenic nerves
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23
Q

middle mediastinum boundaries - transverse thoracic plane

A
24
Q

middle mediastinum boundaries - pericardium

A
25
Q

middle mediastinum boundaries - mediastinal pleura

A
26
Q

middle mediastinum content - heart and pericardium

A
27
Q

middle mediastinum content - ascending aorta

A
28
Q

middle mediastinum content - lower half of svc

A
29
Q

middle mediastinum content - tracheal bifurcation and both main bronchi

A
30
Q

middle mediastinum content - pulmonary trunk dividing into pulmonary arteries

A
31
Q

middle mediastinum content - superior and inferior pulmonary veins

A
32
Q

middle mediastinum content - phrenic nerves

A
33
Q

posterior mediastinum boundaries list

A
  • transverse thoracic plane
  • bodies of vertebrae T5-T12
  • diaphragm
  • pericardium
  • parietal pleura
34
Q

posterior mediastinum content list

A
  • oesophagus (most anterior)
  • thoracic duct
  • right and left vagus nerve
  • descending thoracic aorta
  • azygos and hemiazygos veins
  • right and left sympathetic trunks and their branches (splachnic nerves)
  • lymph nodes
35
Q

posterior mediastinum boundaries - transverse thoracic plane

A
36
Q

posterior mediastinum boundaries - bodies of vertebrae T5-T12

A
37
Q

posterior mediastinum boundaries - diaphragm

A
38
Q

posterior mediastinum boundaries - pericardium

A
39
Q

posterior mediastinum boundaries - parietal pleura

A
40
Q

posterior mediastinum content - oesophagus

A
41
Q

posterior mediastinum content - thoracic duct

A
42
Q

posterior mediastinum content - right and left vagus nerves

A
43
Q

posterior mediastinum content - descending thoracic aorta

A
44
Q

posterior mediastinum content - azygos and hemiazygos veins

A
45
Q

posterior mediastinum content - right and left sympathetic trunks and their branches (splanchic nerves)

A
46
Q

posterior mediastinum content - lymph nodes

A
47
Q

fibrous pericardium

A
48
Q

serous pericardium layers

A
  • parietal layer
  • visceral layer
49
Q

parietal layer

A
50
Q

visceral layer

A
51
Q

parietal layer function

A

lines the inner surface of the fibrous pericardium

52
Q

visceral layer function

A
  • also known as epicardium
  • adheres to the heart and forms its outer covering
53
Q

oblique pericardial sinus location

A

posterior to the left atrium

54
Q

oblique pericardial sinus

A
55
Q

transverse pericardial sinus location

A

posterior to the ascending aorta and the pulmonary trunk but anterior to the SVC

56
Q

transverse pericardial sinus

A