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13 Cards in this Set

  • Front
  • Back

Muscles of Rotator Cuff

Supraspinatous




Infraspinatous




Subscapularis




teres minor




**claw**

Muscles of Shoulder Girdle

Trapezius


Deltoid


Rhomboid major


Rhomboid minor


Levator Scapulae

Trapezius

Innervation: Accessory nerve


Action:


Upper-Elevate scapulae


Middle- retract scapulae


Lower- depress scapulae




** accessory nerve is a cranial nerve (XI)**

Deltoid

Innervation: Axillary nerve


Action: Flex, extend and abduct humerus ** major abductor of arm **

Levator Scapulae

Innervation: Dorsal scapular nerve


Action: elevate scapulae



Rhomboid major

Innervation: Dorsal scapular nerve


Action: Retract and elevate scapula

Rhomboid minor

Innervation: Dorsal scapular nerve


Action: Retract and elevate scapula

Supraspinatus

Rotator cuff



INN: Suprascapular N (C5-C6)


Action: initiation of ABduction of arm (first 15 degrees)



Infraspinatus

Rotator cuff




IN: Suprascapular N (C5-C6)


A: lateral rotation of arm

Teres minor

Rotator cuff




IN: Axillary N.


A: lateral rotation of arm

Subscapularis

Rotator Cuff




IN: lower subscapular N (C5-C7)


A: medial rotation of arm

Teres Major

IN: inferior subscapular N


A: medial rotation, extension of arm

Long head of triceps brachii

IN: Radial nerve (C6-C8)


A: extension of forearm; accessory adductor and extensor of arm