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44 Cards in this Set
- Front
- Back
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Serratus anterior
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stabilizes, protects and laterally rotates scapula
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SA origin
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ribs 1-8
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SA insertion
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anterior surface of medial border of scapula
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SA innervation
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long thoracic nerve (C5,6,7)
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Winged Scapula
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damage to Long Thoracic Nerve can paralyze SA. Scapula unstable, can't abduct arm above head
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Superficial posterior shoulder muscles
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Trap and Lat
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Deep posterior shoulder muscles
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Rhomboids and Levator Scapula
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Scapulohumeral muscles
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Deltoid
Teres Major Supraspinatous Infraspinatous Teres Minor Subscapularis |
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Deltoid
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forms rounded contour of shoulder; principle abductor of arm
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Deltoid insertion
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deltoid tuberosity
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Deltoid innervation
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axillary nerve (C5&6)
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Fracture of surgical neck of humerus
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can damage axillary nerve, atrophy of deltoid, loss of lateral sensation and inability to abduct arm
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Teres major
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adducts, medially rotates arm
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Teres Major Insertion
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bicipital groove
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Teres Major innervation
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lower subscapular nerve (C5&6)
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4 Muscles of the Rotator Cuff
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Supraspinatous
Infraspinatous Teres Minor Subscapularis |
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Supraspinatous
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abduction of arm
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Supraspinatous origin
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supraspinous fossa
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Supraspinatous insertion
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superior facet of greater tubercle
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Supraspinatous innervation
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suprascapular nerve (c5&6)
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Infraspinatous
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lateral rotation of arm
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Infraspinatous origin
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infraspinous fossa
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infraspinatous insertion
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middle facet of greater tubercle
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infraspinatous innervation
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suprascapular nerve
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Teres Minor
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lateral rotation of arm
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Teres Minor origin
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lateral border of scap
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Teres Minor insertion
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inferior facet of greater tubercle
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Teres Minor innervation
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axillary nerve
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Subscapularis
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medial rotation and adduction of arm
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Subscapularis origin
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subscapular fossa
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subscapularis insertion
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lesser tubercle
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subscapularis innervation
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upper and lower subscapular nerves
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Shoulder Bursitis
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inflammation of subacromial bursa due to repetitive motions. Pain btw 50 and 130 degrees when abducting
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Rotator Cuff tendonitis
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inflammation of rotator cuff tendons due to repetitive movements. Supraspinatous tendon most often diagnosed.
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Quadrangular Space
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contains axillary nerve, posterior circumflex humeral artery
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Borders of Quadrangular Space
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teres major, teres minor, long head of triceps, surgical neck of humerus
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Triangular space
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contains circumflex scapular artery.
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Borders of Triangular Space
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teres minor, teres major, long head of triceps
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Suprascapular notch
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suprascapular nerve passes through here
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C5 dermatome
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tip of shoulder
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C6 dermatome
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thumb
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C7 dermatome
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index finger
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C8 dermatome
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little finger
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T1 dermatome
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medial arm
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