Shoulder Muscles Flashcards
Supraspinatus
ORIGIN
Supraspinous fossa
Supraspinatus
INSERTION
Greater tubercle
Supraspinatus
ACTION
Abduction (1st 15 degrees), synergist of deltoid
Infraspinatous
ORIGIN
Infraspinatous fossa
Infraspinatous
INSERTION
Greater tubercle
Infraspinatus
ACTION
Lateral rotation
Teres minor
ORIGIN
Inferior lateral border
Teres minor
INSERTION
Greater tubercle
Teres minor
ACTION
Lateral rotation
Subscapularis
ORIGIN
Subscapular fossa
Subscapularis
INSERTION
Lesser tubercle
Subscapularis
ACTION
Medial rotation
Levator Scapula
ORIGIN
Transverse process C1-C4
Levator Scapula
INSERTION
Superior angle
Levator Scapula
ACTION
Scapular elevation
Rhomboid Minor
ORIGIN
Spinous process C7, T1
Rhomboid Minor
INSERTION
Superior medial border of scapula
Rhomboid Minor
ACTION
Scapular retraction
Rhomboid Major
ORIGIN
Spinous process T2-T5
Rhomboid Major
INSERTION
Inferior medial border of scapula
Rhomboid Major
ACTION
Scapular retraction
Anterior Deltoid
ORIGIN
Lateral 1/3 of clavicle
Anterior Deltoid
INSERTION
Deltoid tuberosity
Anterior Deltoid
ACTION
Flexion, medial rotation, abduction
Middle Deltoid
ORIGIN
Acromion process
Middle Deltoid
INSERTION
Deltoid tuberosity
Middle Deltoid
ACTION
Abduction
Posterior Deltoid
ORIGIN
Spine of the scapula