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Anatomy > Thoracic Cavity I > Flashcards

Thoracic Cavity I Flashcards

1
Q

Number of ribs

A

12

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2
Q

Most oblique rib

A

9

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3
Q

Longest rib

A

7

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4
Q

Costal margin is formed from these ribs

A

8, 9 and 10

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5
Q

Continuous margin formed from the articulation of the 8th, 9th, and 10th costal cartilages

A

Costal margin

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6
Q

True ribs

A

1st to 7th

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7
Q

Type of ribs that attach directly to the sternum through their own costal cartilages

A

True ribs

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8
Q

False ribs

A

8th through 10th

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9
Q

Type of ribs whose cartilages are connected to the rib above them, resulting in an indirect connection to sternum

A

False ribs

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10
Q

Type of ribs whose cartilages do not connect with the sternum

A

Floating ribs

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11
Q

Floating ribs

A

11th and 12th

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12
Q

Type of thoracic wall movement:
Elastic recoil of lungs

A

Passive expiration

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13
Q

Type of thoracic wall movement:
Contraction of the diaphragm
Increase vertical diameter

A

Passive inspiration

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14
Q

Passive inspiration increases this type of diameter of the thoracic wall

A

Vertical

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15
Q

Pump-handle movement increases this type of diameter of the thoracic wall

A

Anterior posterior (AP) diameter of thorax

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16
Q

Type of thoracic wall movement:
Movement of ribs 1-6 at costovertebral joints, and AP movement of sternum
Increase AP diameter of thorax

A

Pump-handle movement

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17
Q

Pump-handle movement of the thoracic wall involves these ribs

A

2-6

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18
Q

Type of thoracic wall movement:
Movement of lower ribs
Increase transverse diameter of thorax

A

Bucket-handle movement

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19
Q

Bucket-handle movement increases this type of diameter of the thoracic wall

A

Transverse diameter of thorax

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20
Q

External intercostal muscles are replaced anteriorly by this

A

Anterior/external intercostal membrane

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21
Q

Internal intercostal muscles are replaced posteriorly by this:

A

Posterior/internal intercostal membrane

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22
Q

Anterior/external intercostal membrane replaces these muscle anteriorly

A

External intercostal muscles

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23
Q

Posterior/internal intercostal membrane replace these muscles posteriorly

A

Internal intercostal muscles

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24
Q

Neurovasculature of the thoracic cavity is located between these muscles

A

Internal intercostal and innermost intercostal muscles

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25
Q

Neurovasculature of the thoracic cavity, running from above downwards:

A

VAN
Vein, artery, nerve

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26
Q

Internal thoracic artery is a branch of

A

Subclavian artery

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27
Q

Anterior intercostal artery for the first 6 spaces arises from this

A

Internal thoracic artery

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28
Q

Anterior intercostal artery for the 7th-9th spaces arise from this artery

A

Musculophrenic artery

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29
Q

2 terminal branches of internal thoracic artery

A

Superior epigastric artery
Musculophrenic artery

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30
Q

Each intercostal space has this number of posterior and anterior intercostal arteries

A

1 posterior intercostal artery
2 anterior intercostal arteries

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31
Q

Posterior intercostal arteries are branches of this (except 1st and 2nd spaces)

A

Aorta

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32
Q

Posterior intercostal arteries of the 1st and 2nd spaces arise from this

A

Superior intercostal arteries

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33
Q

Posterior and anterior intercostal arteries anastomose here

A

Within the intercostal space

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34
Q

Lateral mammary branches are primarily provided by

A

Lateral thoracic artery

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35
Q

Medial mammary branches are primarily provided by

A

Internal thoracic artery

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36
Q

Intercostal nerves arise from

A

Ventral rami of thoracic spinal nerves (T1-T11)

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37
Q

Subcostal nerve arises from

A

Ventral rami of T12 spinal nerve

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38
Q

Component of thoracic cavity that passes through the sternal angle anteriorly and lower border of T4 vertebra posteriorly

A

Transverse thoracic plane

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39
Q

Space enclosed by the visceral and parietal pleurae
Continuous with each other around structures forming the lung root

A

Pleural cavity

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40
Q

Visceral pleura & inferior border of lungs of:
Midclavicular line MCL

A

6th rib

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41
Q

Visceral pleura & inferior border of lungs of:
Midaxillary line MAL

A

8th rib

42
Q

Visceral pleura & inferior border of lungs of:
Paravertebral line

A

10th rib

43
Q

Inferior limit of parietal pleura of:
Midclavicular line MCL

A

8th rib

44
Q

Inferior limit of parietal pleura of:
Midaxillary line MAL

A

10th rib

45
Q

Inferior limit of parietal pleura of:
Paravertebral line

A

12th rib

46
Q

Somatic innervation to costal and peripheral parts of diaphragmatic pleura

A

Intercostal nerve

47
Q

Somatic innervation to central portion of diaphragmatic and mediastinal pleura

A

Phrenic nerve

48
Q

Inflammation of intercostal and phrenic nerves have referred pain here

A

Intercostal space

49
Q

Inflammation of the autonomic innervation of the visceral pleura would have referred pain here

A

Tip of shoulder

50
Q

Component formed by the reaction of the costal and the diaphragmatic pleura

A

Costodiaphragmatic pleural recess

51
Q

Most dependent part of the pleural cavity

A

Costodiaphragmatic pleural recess

52
Q

Fluid tends to gravitate down in this structure of the thoracic cavity

A

Costodiaphragmatic pleural recess

53
Q

Abnormal accumulation of excess fluid in the pleural space

A

Pleural effusion

54
Q

Accumulation of air in the pleural cavity because of injury to the thoracic wall or lung

A

Pneumothorax

55
Q

Component of lungs that extends from the level of spinous process of T4 vertebra posteriorly to the 6th costal cartilage anteriorly

A

Oblique fissure

56
Q

Structure of the right lung that extends from the oblique fissure along the 4th rib and 4th costal cartilage anteriorly

A

Horizontal fissure

57
Q

Horizontal fissure is part of which lung?

A

Right lung

58
Q

Lung with a middle lobe

A

Right lung

59
Q

Part of the superior lobe of the left lung that slides in and out of the costomediastinal pleural recess during active breathing

A

Lingula

60
Q

Wider, shorter, and more vertical bronchus where foreign body is more frequent

A

Primary bronchus of left lung

61
Q

Bifurcation of trachea

A

Carina

62
Q

Carina (bifurcation of the trachea) is at this level

A

Lower border of T4 vertebrae
Lies on the transverse thoracic plane

63
Q

Bronchi that supplies lung

A

Primary

64
Q

Bronchi that supplies a lobe

A

Secondary

65
Q

Bronchi that supplies a bronchopulmonary segment

A

Tertiary

66
Q

2 left bronchial arteries form this

A

Thoracic aorta

67
Q

1 right bronchial artery forms this

A

3rd posterior intercostal artery

68
Q

Number of left bronchial arteries

A

2

69
Q

Number of right bronchial arteries

A

1

70
Q

Artery that forms the thoracic aorta

A

2 left bronchial arteries

71
Q

Artery that forms the 3rd posterior intercostal artery

A

1 right bronchial artery

72
Q

Right bronchial vein drains here

A

Into azygos vein

73
Q

Bronchial vein that drains into azygos vein

A

Right bronchial vein

74
Q

Left bronchial vein drains here

A

Into accessory hemi-azygos vein

75
Q

Bronchial vein that drains into the accessory hemi-azygos vein

A

Left bronchial vein

76
Q

Broncho-pulmonary segment where a foreign aspirated body would most commonly lodge

A

Superior segment of right lower lobe (segment 6)

77
Q

Broncho-pulmonary segment that is frequently affected by pulmonary tuberculosis

A

Posterior segment of upper lobe (segment 2)

78
Q

Number of Broncho-pulmonary segments in the right lung

A

10

79
Q

Number of Broncho-pulmonary segments in the left lung

A

8-10

80
Q

Motor supply to diaphragm

A

Phrenic nerves (C3-C5)

81
Q

Central sensory supply of diaphragm

A

Phrenic nerves (C3-C5)

82
Q

Peripheral sensory supply of diaphragm (2)

A

Intercostal nerves (T5-T11) and subcostal nerves (T12)

83
Q

Paralysis of this results in seesaw movement and paradoxical respiration

A

Hemidiaphragm

84
Q

Pulmonary lymphatics drain here on the right side

A

Right lymphatic duct

85
Q

Pulmonary lymphatics drain here on the left side

A

Thoracic duct

86
Q

Tracheobronchial nodes can compress this nerve when enlarged

A

Recurrent laryngeal nerve

87
Q

The bronchi and arteries of the lungs are segmental or intersegmental?

A

Segmental

88
Q

The pulmonary veins are segmental or intersegmental?

A

Intersegmental

89
Q

Superior phrenic arteries arise from this

A

thoracic aorta

90
Q

Musculophrenic and pericardiophrenic arteries arise from this

A

Internal thoracic arteries

91
Q

Arterial supply to superior surface of diaphragm (3)

A

Superior phrenic arteries
Musculophrenic
Pericardiophrenic

92
Q

Inferior phrenic arteries arise from this

A

Abdominal aorta

93
Q

Arterial supply to inferior surface of diaphragm (1)

A

Inferior phrenic arteries

94
Q

Musculophrenic and pericardiacophrenic veins drain into this

A

Internal thoracic veins

95
Q

Superior phrenic vein on the right side drains into this

A

Inferior vena cava

96
Q

Venous supply to superior surface of diaphragm (3)

A

Musculophrenic
Pericardiacophrenic
Superior phrenic

97
Q

Right inferior phrenic vein drains into this

A

Inferior vena cava

98
Q

Left inferior phrenic veins drain into these (2)

A

Inferior vena cava
Suprarenal vein

99
Q

Inferior phrenic nerve that is doubled

A

Left

100
Q

Venous supply to inferior surface of diaphragm

A

Inferior phrenic nerves (right, left is doubled)

101
Q

Tracheobronchial nodes lie in close proximity to this structure

A

Arch of aorta

Anatomy (23 decks)

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