Mod 5 Muscles Flashcards
Serratus anterior origin
External surface of upper 8 or 9 ribs
Serratus anterior insertion
Anterior surface of medial border of scapula
Serratus anterior actions
Abducts Upwardly rotates depresses at scapulothoracic holds medial border of scapula against rib cage
Serratus anterior nerve
Long thoracic nerve
Subclavius origin
1st rib and cartilage
Subclavius insertion
Inferior surface of middle ⅓ of clavicle
Subclavius actions
Depress the clavicle and draws anteriorly elevates first rib stabilize sternoclavicular joint
Subclavius nerve
Subclavian nerve
Coracobrachialis origin
Coracoid process of scapula
Coracobrachialis insertion
Medial surface of mid humerus shaft
Coracobrachialis action
Flex and adduct shoulder and g/h joint
Coracobrachialis nerve
Musculocutanious nerve
Teres major origin
Inferior angle and lower ⅓ of lateral border of scapula
Teres major insertion
Crest of lesser tubercle of humorous
Teres major actions
Medial rotates adducts extends gh joint
Teres major nerve
Lower subscapular nerve
Infraspinatus origin
Infraspinous fossa of scapula
Infraspinatus insertion
Greater tubercle of humorous
Infraspinatus actions
Laterally rotates adducts and stabilizes gh joint
Infraspinatus nerve
Suprascapular
Teres minor origin
Upper ⅔ of lateral border of scapula
Teres minor insertion
Greater tubercle of humorous
Teres minor actions
Laterally rotates adducts stabilizes gh joint in glenoid cavity
Teres minor nerve
Axillary nerve
Subscapularis origin
Subscapular fossa of scapula
Subscapularis insertion
Lesser tubercle of humorous
Subscapularis actions
Medial rotate and stabilize gh and glenoid cavity
Supraspinatus origin
Supraspinous fossa of scapula
Supraspinatus insertion
Greater tubercle of humorous
Supraspinatus actions
Abducts and stabilizes gh at glenoid cavity
