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Anatomy > Anatomy Thoracic > Flashcards

Anatomy Thoracic Flashcards

1
Q

I.D by Palpation of specific T vertebra.

A

T1: Inferior to C7SP
T3: Midline b/n root of the spines
T7: Midline between inferior angles of scapula.
T12: Midpoint b/n inferior angle and iliac crest.

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2
Q

Typical Thoracic Vertebrae

A

Vertebral Body
Vertebral Arch
Connected by Pedicles

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3
Q

Demi Facets

A

Articulations of ribs on posterolateral aspects of the vertebral body

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4
Q

T vertebra plane and movement

A

Front plane results in more SB and rotation. Limits flexion/extension

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5
Q

What is atypical about T1

A

It has a full superior facet on body for head of 1st rib. Has demi facet for superior articular facet on head of 2nd rib.

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6
Q

What is atypical about T10?

A

Facet for rib located on pedicle, not body.

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7
Q

What is atypical about T11/12?

A

Facet for rib located on pedicle.
Have full facets for ribs instead of demi facets.
No transverse facet for rib articulations on rib 11 and 12.

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8
Q

True ribs #

A

1-7

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9
Q

False ribs #

A

8-10

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10
Q

Floating ribs #

A

10-12

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11
Q

Typical ribs #

A

2-9

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12
Q

Atypical ribs #

A

1, 10-12

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13
Q

Articular portion of rib

A

Bears a convex facet for articulation with the TP of the similarly numbered vertebrae.

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14
Q

Non-articular portion of rib

A

Is a small roughened area that serves as the attachment site for the lateral costatransverse ligament.

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15
Q

What ribs contain only 1 articular facet?

A

10,11,12

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16
Q

Sternum consists of?

A

Manubrium, body, xiphoid process

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17
Q

Joints of Thoracic Cage Classification

A

Synarthrosis, Cartilaginous, Symphysis

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18
Q

Facet Joint Classification

A

Synovial, Planar

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19
Q

Facet joint movement in Thoracic

A

More SB and rotationm limited Flex/Ext

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20
Q

Joint of the head of the rib location

A

B/n the head of the rib and the vertebral bodies

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21
Q

Costotransverse Joint

A

B/n the tubercle of the rib and the TP

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22
Q

Joint of the head of the rib formation

A

Ribs 2-9 formed by head of rib and 2 adjacent vertebra

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23
Q

Joint of head of rib classification

A

Synovial w/ ovoid morphology.

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24
Q

Ligamentous support of head of rib?

A

Radiate ligament

25
Q

Costotransverse joint members include?

A

Nick of rib w/facet ant aspect of TP

26
Q

Costotransverse joint classification?

A

Synovial, Planar

27
Q

Ligamentous support of Costotransverse joint?

A

Costotransverse ligament

28
Q

Costochondral joint classification

A

Synarhrroses and Synchondrosis

29
Q

1st chondrosternal joint

A

B/n 1st rib costal cartilage and manubrium is synarthrodial joint.

30
Q

2nd chondrosternal joint is a

A

Diarthrodial (synovial) joint

31
Q

3rd-7 Chondrolsternal joints classification?

A

Synovial, Planar

32
Q

Interchondral joints location

A

Ribs 6-10

33
Q

Interchondral Joints classification?

A

Synovial

34
Q

Manubristernal Joint classification

A

Symphysis ( joint w/fibrocartilaginous disc)

35
Q

Xiphisternal joint classification

A

Symphysis

36
Q

Diaphragm movement

A

As diaphragm contracts height decreases, increasing volume of thorax. Connected by central tendon

37
Q

External Intercostal Muscle superior layer fiber direction

A

Hands in pocket

38
Q

Internal intercostal muscles fiber direction

A

Inferolateral

39
Q

Limiting factor forward bending

A

facets upglide bilaterally

Annulus fibrosus compresses anteriorly

40
Q

Limiting factor backward bending

A

facets downglide bilaterally
Ant annulus fibrosus stretched
firm and possible bony end feel

41
Q

SB non-functional

A 
SB and rotation are opposite
ipsilateral facet glides inferiorly
contralateral facet glides superiorly
vertebra rotates contra laterally
Ipsilateral disc compressed
42
Q

SB functional

A

SB and rotation same side
Ipsilateral facets gap
Contralateral facets compress

43
Q

Rotation

A

Ipsilateral facets gap
Contralteral facets compress
Minimal rotation in segments but great rotation as a whole

44
Q

Conduit

A

structures that pass completely through the thorax from one body region to another or structures that connect organs in the thorax to other body regions.

45
Q

Upper thoracic region

A

T1-T4

46
Q

middle thoracic region

A

T4-T9

47
Q

Lower thoracic region

A

T10-T12

48
Q

TP typical characteristics

A

articulate with turbercle of the rib to form the joint of the head of rib.

49
Q

4 articular processes on each vertebrae

A

2 superior and 2 inferior articular processes

50
Q

Atypical Rib 1

A

Single articular facet on head of rib, most highly curved rib.

51
Q

Atypical rib 10

A

Head of the 10th rib contains only one articular facet for articulation with the body of the 10th thoracic vertebra.

52
Q

Atypical ribs 11 and 12

A

Heads only contain one articular facet to articulate with vertebra.
These ribs do not contain necks, tubercles, or rib angles

53
Q

3 layers of intercostal muscles superficial to deep

A

External Intercostal
Internal Intercostal
Innermost Intercostal

54
Q

Extension Biomechanics and limiting factors

A

ALL, Rectus abdominus, facets downglide, posterior compression, sagittal plane, frontal axis.

55
Q

Flexion biomechanics and limiting factors

A

Supraspinus, interspinus, PLL, ligamentum flavum, intertransverse ligaments.
Anterior compression
Erector spinae limits

56
Q

Facet movement when in neutral

A

SB contralateral rotation

57
Q

Facet movement when in functional position

A

Ipsilateral opening of facets and contralateral closing.

58
Q

SB limitation

A

Quadratus lumborum, inter transverse, iliolumbar ligaments

Facets open contralateral side

Anatomy (10 decks)

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