Shoulder
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| Humerus inserts where? | Glenoid cavity of scapula
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| Coracoid what is? | forward process from scapula
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| Acromion what is? | backward process that comes off spine of scapula
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| clavicle to scapula art via? | Acromion
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| Pectoralis Minor O? I? A? | O-2,3,4 ribs
I-coracoid process
A-depresses shoulder
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| Subclavius O? I? A? | O-1st rib
I-under clavicle
A-steadies clavicles while shoulder moves
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| Pectoralis Major O? I? A? | O-1)front medial 1/2 clavicle
2)upper costal cartilages
3)External oblique aponeurosis
4)sternum front
I-Greater tubercle of Humerus
A-1)adducts arm
2)med rotates arm
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| Scapular notch? | upper boder, neurovasc bundle -> back of scapula
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| Subscapular bursa between? | joint capsule & muscle
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| Subscapularis I? A? | I=Lesser tubercle of H
A= 1) adduct
2) med rotator
3)secures head of humerus in glenoid
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| Teres major O I A | O=post,lat surface scapula
I=below subscapularis L tubercle of humerus
A=A= 1) adduct
2) med rotator
3)secures head of humerus in glenoid
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| Latissimus Dorsi O I A | O= T and L spinous process, lig, thoracolumbar fascia, illiac crest
I=flat tendon -> intertrabecular groove of H
A= 1) adduct
2) med rotator
3)great climbing muscle pulls trunk up
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| Serratus anterior O I A | O=1-8 ribs
I= medial border of scapula
A= protracts scpula forwards
secures scpula to chest wall if paralysed-> winged scapula
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| Deltoid O I A | O=U shaped, lat border clavicle -> acromion -> scapular spine
I=deltoid tuberosity of H
A= ant fibres - flex
post fibres extend
med main abductor
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| Muscles of back of scapula (3) | 1 Supraspinatus
2 Infraspinatus
3 Teres Minor
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| Supraspinatus O I Rel Clnical (2) N Art A | O= spupraspinous fossa
-> under acromion
I=G. tubercle H
Rel=capsule below, subacromial bursa above
Clinical=1 tendon rupture injur 2 caification
N=suprascapular n
Art=subclavian
A=initiation + maintain abduct + stability
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| Infraspinatus O I N A | O=infraspinous fossa
I=G. tubercle of H
N=suprascapuar n via glenospinous notch ->infra
A=lat rotator
stability
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| Teres minor O I A N | O=infraspinous fossa
I=G.tubercle of H
A=lat rotator
stability
N=axillary n post cord brachial plexus between subscapularis/teres major
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| Levator scapulae and Rhomboids O I N A | O=vertebral column
I=med edge scapula
N=dorsal scapular n
A=rotate scpula so that genoid faces down
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| Trapezious O I A N | o=along vert column, back of skull -> C/T vertebrae spines
I=lat 1/3 clavicle, spine scapula ->acromion
A=rotates scapular so glenoid faces up
N=CN XI accessory n
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| Cavicular joints (2) | sternoclavicular, acromioclavicular, coracoclavicular ligament
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| Sternoclavicular joint Type Between Other | T=synovial with articular disk inbetween
B=1st rib-manubrium (1 cart immobile) -> med head clavicle
O= see-saw movement opp to shoulder pivot = lig c->1st rib
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| Coracoclavicular lig use | supports weight of upper limbs
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| Acromioclavicular joint T A | T=synovial
A=only small gliding move
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| labrum glenoidale | rim of fibrous tissue around glenoid to increase art surface deepens
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| bursas = def | protrudations of synovial membrane decreases friction bet muscle -joint
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| Ligaments of shoulder joint | 1)coracohumeral -> G tubercle prev excessive external rotation
2)coracoacromial prevents excessive upward displacement
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| Synovial membrane NB | lines all intracapsular structures
except articular cartilage
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| subacromial bursa NB | not cont with shoulder joint synovia sep joint from coracoacromial arch/deltoid
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| Rotator cuff | tendons of muscles that surround joint
Above=Supraspinatus
Behind=Infraspinatus + T minnor
In front=Subscapularis
below=nothing, fold of Sub+Infra dislocation!
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| Movement-Adduction | pec major +lat dorsi
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| Movement-Abduction | intiated by supraspinatus, maintained by deltoid, if s paralysed swing passively then deltoid
>90 = scapular rotates increase art surface
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| Movement-flexion | deltoid-ant fibres
pec major
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| Movement-extension | deltoid post fibres + lat dorsi
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| Rotation of humerus | subscapularis, infraspinatus, teres major
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| all ab, add, flex, extend =? | circumduction =/ rotation
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| shoulder dislocation=>? | test for axillary nerve damage skin over deltoid tuberosity, + deltoid strength
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| cervical rib | brachial plexus injury
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| Axilla boundaries | front= clavicle
back=upper border scapula
med=1st rib outer border
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| Brachial plexus nerve contributions? | C5-T1
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| Brachial plexus break down and areas | Roots->Trunks->Divisions->Cords
behind scalenous anterior->post triangle->under clavicle->axilla
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| Long thoracic -> inn | serratus ant
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| Dorsal scapular inn | levator scapulae, rhomboids
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| subscapular n.s inn | subscapularis t major
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| Branches of the axillary artery (7) | -superior thoracic A
-Thoracoacromial A
-Lateral thoracic
-Brachial artery
-2 circumflex humeral art
-subscapular -> circumflex scapular->back scapular muscles
thoracodorsal
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| Axillary nodes drainig pattern | Anterior/Pectoral -breast
Posterior/subscapular-muscles
Lateral group-upper limb
all-> central nodes -> apical
infraclavicular also -> apical
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| Position of breast | side sternum->edge pec major
rib 2-6
nipple 4th intercostal space
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| blood supply -> breast | internal thoracic
thoracic brahces of axillary A
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| Lymph drain of breast | internal thoracic nodes
axillary
infraclavicular
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| Spread matastises of breast cancer | other breast -
thoracic cavity
abdominal cavity - abdo wall
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| Suprascapular inn |
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| thoracodorsal->inn |
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Created by:
angelina_ballerina
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