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Anatomy Test 2 > Thoracic Wall > Flashcards

Thoracic Wall Flashcards

1
Q

which ribs are true ribs?

A

1-7

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2
Q

what determines a true rib?

A

attaches directly to sternum via costal cartilage

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3
Q

which ribs are false indirectly attached ribs?

A

8-10

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4
Q

which ribs are false floating ribs?

A

11-12

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5
Q

ribs are what type of bone?

A

curved flat bones

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6
Q

heads of ribs 2-9 articulation

A

Sup facet: vertebral body above Inf facet: vertebral body below Crest - projection between articular facets

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7
Q

what is found in the costal groove?

A

intercostal blood vessels, nerve, and muscles

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8
Q

what part of the rib forms the costochondral joint?

A

cup for the costal cartilage

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9
Q

T2-T9 articulate with ribs where?

A

bilaterally demifacets on sup/inf surfaces

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10
Q

plane of articular processes allows T vert to do what?

A

rotate and ab-/adduct but not FL/EX

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11
Q

joint type for manubrium and 1st rib

A

synchondrosis

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12
Q

Costovertebral joint type

A

articulations are planar but overall joint is condyloid

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13
Q

Costovertebral joint, # of articulations

A

typically 3 (ribs 2-9)

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14
Q

Costovertebral joint ligaments

A

1). strong capsule 2). intra-articular ligament 3). radiate ligament

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15
Q

collective movements at the Costovertebral joints?

A

pump/bucket handle – each articulation rotates a little which collectively elevates/depresses the sternum

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16
Q

how many articulations does a costotransverse joint have?

A

1 articulation per rib

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17
Q

where does the costotransverse joint articulate?

A

transverse process of the inferior vertebrae

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18
Q

Costotransverse joint type

A

planar

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19
Q

ribs 1-6 costotransverse joints

A

slightly convex (rib) with concave (transverse process) – allow rotation = pump handle

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20
Q

ribs 7-10 costrotransverse joints

A

flat planar - allow gliding = bucket handle

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21
Q

Costotransverse joint ligaments

A

weak capsule, lateral and superior costotransverse ligaments

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22
Q

Sternocostal joints

A

1). rib 1 - synchondrosis 2). ribs 2-10 have costochondral and sternochondral joints

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23
Q

costochondral joint type

A

synchondrosis (rib to cartilage)

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24
Q

sternochondral joint type

A

synovial planer (cartilage to sternum)

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25
Q

sternochondral joint rib 1

A

syncondrosis

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26
Q

sternochondral joint ribs 2-10

A

synovial planar/gliding

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27
Q

superior aperture borders

A

1). post - T1 body 2). lat - rib 1 3). ant - manubrium

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28
Q

superior aperture contents

A

esophagus, trachea, nerves (vagus, sympathetic trunk, cervical plexus), blood vessels (carotids, subclavian, vertebral, jugular)

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29
Q

inferior aperture borders

A

1). post - T12 body 2). lat post - 11 & 12 ribs 3). lat ant - costal cartilage ribs 7-10 4). ant - xiphosternal joint

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30
Q

what is the inferior aperture covered by?

A

respiratory diaphragm

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31
Q

inferior aperture contents

A

esophagus, nerves (vagus, sympathetic chain), blood vessels (inf vena cava, descending aorta), internal thoracic arteries

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32
Q

what are the internal thoracic arteries called as they pass the diaphragm?

A

superior epigastric arteries

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33
Q

subdivisions of thoracic cavity

A

R/L Pleural cavity, mediastium

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34
Q

what is in the mediastium?

A

pericardial cavity, esophagus, trachea, great vessels, nerves

35
Q

Muscles of the thoracic cavity

A

1) . Serratus posterior (S/I)
2) . Levator Costarum
3) . External intercostals
4) . Internal intercostals
5) . innermost intercostals
6) . subcostal
7) . transversus thoracis

36
Q

Serratus posterior superior, origin

A

S: spinous processes C7-T3

37
Q

Serratus posterior superior, insertion

A

ribs 2-4

38
Q

Serratus posterior superior, innervation

A

intercostal nerves

39
Q

Serratus posterior superior, action

A

proprioception for respiration control

40
Q

Serratus posterior inferior origin

A

spinous processes T11-L2

41
Q

Serratus posterior inferior insertion

A

ribs 9-12

42
Q

Serratus posterior inferior, innervation

A

intercostal nerve

43
Q

serratus posterior inferior, action

A

proprioception for respiration control

44
Q

Levator costarum origin

A

transverse processes of C7-T11

45
Q

Levator costarum insertion

A

rib below

46
Q

Levator costarum innervation

A

dorsal rami

47
Q

Levator costarum action

A

elevate ribs for inspiration

48
Q

external intercostals origin

A

superior rib

49
Q

external intercostals insertion

A

inferior rib

50
Q

external intercostals innervation

A

intercostal nerve

51
Q

external intercostals action

A

elevate adjacent rib for inspiration

52
Q

internal intercostals origin

A

inferior rib

53
Q

internal intercostals insertion

A

superior rib

54
Q

internal intercostals innervation

A

intercostal nerve

55
Q

internal intercostals action

A

depress adjacent rib for expiration

56
Q

innermost intercostals origin

A

inferior rib

57
Q

innermost intercostal insertion

A

superior rib

58
Q

innermost intercostal innervation

A

intercostal nerve

59
Q

innermost intercostal action

A

depress adjacent rib expiration

60
Q

subcostal origin

A

inferior rib

61
Q

subcostal insertion

A

superior rib 2 or 3 above

62
Q

subcostal innervation

A

intercostal nerve

63
Q

subcostal action

A

depress ribs for expiration

64
Q

transversus thoracis origin

A

sternum

65
Q

transversus thoracis insertion

A

costal cartilage

66
Q

transversus thoracis innervation

A

intercostal nerve

67
Q

transversus thoracis action

A

proprioception for respiration control

68
Q

ventral rami T1-11

A

intercostal nerve

69
Q

what are the intercostal nerves further divided to?

A

S/I collateral branches and Lat/Ant cutaneous

70
Q

ventral rami T12

A

subcostal nerve

71
Q

sympathetic chain ganglia

A

connected to ventral rami by rami communicants; located on either side of vertebral bodies forming thoracic vertebral column

72
Q

blood supply to Ant and Ant/lat thoracic wall

A

R/L subclavian arteries -> internal thoracic artery -> ant intercostals arteries -> ant and lat intercostals spaces of ribs 1-10

73
Q

blood supply to post and post/lat thoracic wall

A

descending abdominal aorta -> paired post intercostal arteries -> post and post/lat intercostals spaces of ribs 4-11

74
Q

Anterior intercostal veins

A

internal thoracic veins -> brachiocephalic vein

75
Q

posterior intercostals veins

A

azygos/hemiazygos system -> superior vena cava

76
Q

lymph flow

A

blood plasma -> capillary filtration -> ECF -> lymph capillary -> lymph fluid -> lymph vessel -> lymph nodes -> lymph trunk -> lymph duct

77
Q

2 lymph ducts

A

Right Lymphatic Duct and Thoracic Duct

78
Q

what does the Right lymphatic duct drain?

A

right side of head, arm, and thorax

79
Q

what does the Thoracic duct drain?

A

left side head, arm, thorax, and entire abdomen, pelvis, legs

80
Q

structural components of the mammary gland

A

1) . glandular tissue
2) . lactiferous ducts/sinus
3) . nipple
4) . areola
5) . fat
6) retro-mammary space
7) . pectoralis fascia
8) . suspensory (Cooper’s) ligaments

81
Q

anterior arterial blood flow to the mammary glands

A

anterior intercostal -> medial mammary branches

82
Q

axillary arterial blood flow to the mammary glands

A

axillary artery -> lateral thoracic and thoracoacromial -> lateral breast

83
Q

posterior arterial blood flow to the mammary glands

A

posterior intercostals artery -> deep structures

Anatomy Test 2 (14 decks)

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