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AN 1106 > Thoracic > Flashcards

Thoracic Flashcards

1
Q

typical thoracic vertebra vetebral body

A
  • heart shapped

- left part slightly flattened due to relation w thoracic aorta

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2
Q

typical thoracic vertebra pedicles

A
  • sup vertebral notch absent

- inf vertebral notch deep

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3
Q

typical thoracic vertebra TP

A

directed lat and post

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4
Q

typical superior AP

A
  • has an anterior non articular surface that slopes towards the sup vertebral notch
  • has articular facet that is orientated post, lat and slightly sup
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5
Q

typical inferior AP

A
  • has post non articular surface for muscle attachment

- has articular facet that is orientated post, lat and slightly sup

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6
Q

atypical vertebra

A

T1, 11, 12, 10, 9

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7
Q

t1 features

A

-widest thoracic vertebrae
VB- rectagular/ oval shape
TP- biggest and strongest
SP- longest/ almost horizontal

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8
Q

T12 features

A

-narrowest thpracic vertebrae
VB- more kidney shaped
TP- smallest TPs
Sup AP- has mammillary process on non articular part
Inf AP- has lumbar appearence, faces anterior and lat
SP- rectangular, almost horizontal

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9
Q

T11 features

A

VB- full costal facet for head of 11th rib

TP- relatively small

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10
Q

T10 features

A

VB- has a costal facet for the head of 10th rib that can either be full facet or semilunar shaped
TP- the transverse costal favet for the tubercle of the 10th rib may be absent

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11
Q

T9 vertebrae features

A

atypical only in the case when the head of the 10th rib articulates with the vertebral body t10 only

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12
Q

shape of intervertebral foramen

A

round

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13
Q

borders of intervertebral foramen

A

ant- posterolater part of the vertebral body + costovertebral joint
inf- sup vertebral notch
post- z joint
sup- inf vertebral notch

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14
Q

biomechanics of the thoracic spine

A

the most rotation
fair but limited by ribs lateral flexion
fair flex/extension

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15
Q

Scheuremanns disease

A

incomplete formation of the epiphyseal rims, mostly their anterior portion, leading to extreme kyphosis

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16
Q

Kummells fracture

A
  • form of avascular necrosis
  • A fracture that is post traumatic in nature beacuse it affects the blood supply of the posterior intercostal arteries and subcostal arteries
17
Q

how many costal notches are there on the sternum

A

7 pairs of costal notches for the costal cartilages 1-7

18
Q

what is the sternal angle

A

where manubrium joins body

19
Q

what are the true, false and free ribs

A

true (1-7)
false (8-10)- attach to the vertebrea and ant. end attach to costal cartilage of rib number before
free (11, 12)

20
Q

what are the typical ribs

A

3-9

21
Q

3 features of head of rib

A
  • superior facet
  • inf facet
  • crest
22
Q

the crest serves for the attachment to the

A

annulus fibrosis

23
Q

features of tubercle of rib

A

articular surface- serves for coastal joint

non articular surface- serves for muscle attachment

24
Q

superior/ inf border of shaft of rib which is sharp, roun

A

sup- round

inf-sharp

25
Q

what does the costal groove of rib protect

A

-intercostal neuronal vascular bundle

26
Q

atypical vertebrea

A

1,2,11,12 and somtimes 10 if full costal favet for VB T10

27
Q

features of 1st rib

A
  • Head has only 1 facet (fully attaches to T1 vertebra
  • Lacks costal groove
  • No crest
28
Q

features of 2nd rib

A
  • Only rib when layed on table is flat

- has attachment for 2nd digit of serratus ant

29
Q

Features of 11/12 rib

A
  • fully attach to their corresponding vertebrea

- no neck/tubercle

30
Q

sup thoracic appeture shape and border

A
  • kidney shape

- T1 VB, Medial border of first ribs, Sup border of manubrium sternalis

31
Q

Inf thoracic appeture borders

A

T12 VB, inf border of rib 10/11/12, costal cartilage 7-10

32
Q

How do the upper 6 ribs move

A
  • pump handle type movement

- increases sagital diameter (moves ant.)

33
Q

how do ribs 7-12 move

A
  • bucket handle type movement

- as we breathe lower ribs elevate sideways

AN 1106 (21 decks)

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