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Scapular Region
Actions, Origins, Innervationa and Insertions
7
Anatomy
Graduate
09/16/2011

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Cards

Term
Deltoid
Definition
Origin: Lateral 1/3 of clavicle
Insertion: Deltoid tuberosity of humerus
Innervation: Axillary N.
Ant. Flxes and medially rotates arem
Middle: Abducts arm
Pos. Extends and laterally rotates arm
Term
Supraspinatus
Definition
Origin: Supraspinatous fossa of scapula
Insertion: Greater tubercle of humerus (Superior facet)
Innervation: Suprascapular N.
Action: Initiates abduction (first 15 degrees) by assisting with deltoid
Term
Infrapinatus
Definition
Origin: Infraspinatous fossa of scapula
Insertion: Greater tubercle of humerus (middle facet)
Innervation: Suprascapular N.
Action:Laterally rotates arm
Term
Teres Major
Definition
Origin: Posterior surface of inferior angle of scapula
Insertion: Intertubercular sulcus of humerus
Innervation: Lower Subscapula N.
Action: Adducts and medially rotates
Term
Teres Minor
Definition
Origin: Middle part of lateral border of scapula
Insertion: Greater tubercle of humerus (Inferior facet)
Innervation: Axillary N.
Action: Laterally rotates
Term
Subscapularis
Definition
Origin: Subscapular fossa Insertion:Lesser tubercle of humerus Innervation: Upper and lower subscapular N. Action: Medially rotates arm; holds head of humerus in glenoid cavity Action:
Term
SITS (Rotator Cuff)
Definition
-Supraspinatus
-Infraspinatus
-Teres minor
-Subscapularis
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