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MS 100 > MS Bones And Joints Of Shoulder Girdle > Flashcards

MS Bones And Joints Of Shoulder Girdle Flashcards

1
Q

GH joint articulating surfaces

A

Glenoid fossa of scapula within the head of the humerus

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2
Q

GH joint classification

A

Structural: Multi-axial, ball and socket, synovial joint
Functional: Diarthrodial

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3
Q

GH movements permitted

A

Abduction/adduction
Flexion/extension
Horizontal abduction/adduction
Internal/external rotation

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4
Q

GH ligaments

A

Capsule
GH ligament
Coracohumeral ligament
Transverse humeral ligament
Coracocrominal ligament

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5
Q

GH bursae and labrum

A

GH labrum
Subdeltoid bursa
Subocranial bursa
Subscapular bursa

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6
Q

Capsule (GH)

A

Axillary recess
Lax in adduction, taught in abduction

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7
Q

Glenohumeral ligament

A

Partially capsular, anterior
Z-shaped with three bands: superior, middle, interior
Limits external rotation and horizontal abduction

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8
Q

Coracohumeral ligament

A

GH
Extracapsular
2 bands: superior, inferior
Helps support dependent arm against gravity

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9
Q

Transverse humeral ligament

A

GH
Extracapsular
Anchors long head of biceps tendon within the intertubular sulcus

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10
Q

Coracoacromial ligament

A

GH
Extracapsular
Band arches over GH joint
Forms portion of roof of subacromial arch
Limits elevation of the humerus/ superior displacement of head of humerus
Contributes to coracoacromial arch

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11
Q

GH labrum

A

Intracapsular
Lines glenoid fossa to deepen thus increasing congruency

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12
Q

Subdeltoid bursa

A

GH
Sits between the acromian and proximal humerus and deltoid

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13
Q

Subocranial bursa

A

GH
Between acromion and supraspinatus tendon

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14
Q

Subscapular bursa

A

GH
Between glenohumeral ligament/anterior joint capsule and subscapularis tendon

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15
Q

Acromioclavicular joint articulating surfaces

A

Acromial facet of clavicle
Clavicular facet of acromion (medial acromion)

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16
Q

AC joint classification

A

Structural: non axial, plane, synovical
Functional: diarthrodial

17
Q

AC movements permitted

A

Superior/inferior scapular rotation
Scapular protraction/retraction
Upward tip/anterior tilt

18
Q

AC ligaments

A

Capsule
Acromioclavicular ligaments
Coracoclavicular ligaments ( Conoid and Trapezoid)
Superior transverse scapular ligament

19
Q

Capsule (AC)

A

Relatively weak
Within is a disc, often absent by age 40

20
Q

Acromioclavicular ligament

A

Extracapsular
Superior and inferior bands
Limit one bone over riding another

21
Q

Coracoclavicular ligament ( Conoid and Trapezoid)

A

AC
Extra capsular
Trapezoid attaches lateral
Conoid attaches medial
Helps disperse force in a FOOSH

22
Q

Superior transverse scapular ligament

A

AC
Extra capsular
Doesn’t cross a joint
Spans the suprascapular notch

23
Q

Sternoclavicular joint articulating surfaces

A

Sternal facet of the clavicle and costo cartilage of rib 1 with the superolateral manubrium /clavicular facet

24
Q

AC joint classification

A

Structural: biaxial, saddle, synovial
Functional: Diarthrodial

25
Q

AC movements permitted

A

Clavicular elevation/depression
Clavicular protraction/retraction
Clavicular rotation

26
Q

SC ligaments

A

Capsule
Sternoclavicular ligament
Costoclavicular ligament
Interclavicular ligament

27
Q

Capsule (SC)

A

Lax and thin above and below joint
Disc (intra-capsular) attached to the clavicle superiorly and costocartilage of rib 1 inferiorly
The disc divides the SC into 2 joint spaces: medial and lateral
Function of the disc: shock absorption

28
Q

Sternoclavicular ligament

A

SC
Extra capsular
Two bands: Anterior and posterior
Limit anterior/posterior clavicular movement

29
Q

Costoclavicular ligament

A

SC
Extracapsular
Goes from Costco cartilage of rib 1 to inferior clavicle
Limits clavicular motion at 90° GH abduction

30
Q

Interclavicular ligament

A

SC
Extra capsular
Spans sternal notch
Limit superior and inferior clavicular displacement

MS 100 (5 decks)

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