Group 2: Origin on shoulder girdle, insert on humerus Flashcards
Deltoid O?
Lateral 1/3 of clavicle, acromion and spine of scapula
Deltoid I?
Deltiod tuberosity of humerus
Deltoid A of mid fibers?
Abduct g/h joint.
Deltoid A of anterior fibers?
Flex, medially rotate and horiz. adduct g/h joint.
Deltoid A of posterior fibers?
Extend, laterally rotate and horiz. abduct g/h joint.
Which are the rotator cuff muscles?
Supraspinatus, infraspinatus, teres minor and subscapularis.
Supraspinatus O?
Supraspinous fossa of scapula
Supraspinatus I?
Greater tubercle of humerus
Supraspinatus A?
Abduct and stabilize g/h joint
Infraspinatus O?
Infraspinous fossa of scapula
Infraspinatus I?
Greater tubercle of humerus
Infraspinatus A?
Laterally rotate and stabilize g/h joint
Teres Minor O?
Upper 2/3 of lateral border of scapula
Teres Minor I?
Greater tubercle of humerus
Teres Minor A?
Laterally rotate and stabilize g/h joint
Subscapularis O?
Subscapular fossa of scapula
Subscapularis I?
Lesser tubercle of humerus.
Subscapularis A?
Medially rotate and stabilize shoulder
Teres Major common term?
Lat’s little helper
Teres Major O?
Inferior angle and lower 1/3 of lateral border of scapula
Teres Major I?
Medial lip of bicipital groove
Teres Major A?
Extend, medially rotate and adduct g/h joint
Latissimus dorsi O?
SP’s T6-L5, posterior iliac crest and median sacral crest.
Latissimus dorsi I?
Bicipital groove of humerus
Latissimus dorsi A? (same as Teres Major)
Extend, medially rotate and adduct g/h joint
