OIA Flashcards
Pectoralis major
Origin: medial half of clavicle, sternum, cartilage of ribs 1-6.
Insertion: crest of greater tubercle of humorous
Action: adduct, medically rotate, elevate, flex, horizontally adduct, extend.
Pectoralis minor
Origin: 3,4,5 ribs
Insertion: medial surface of corcoid process of scapula
Action: depression, abduction, downwardly rotate, elevate.
Trapezius
Origin: external occipital protrubance, medial portion of superior nuchal line of occipital., ligamentum Michael c7-t12
Insertion: later 1/3 clavicle, acromion and spine of scapula
Action: extend, laterally flex, rotate, upwardly rotate, adduct, stabilize, depress, upwardly rotate
Rhomboid
Origin: major=t2-t5
Minor=c7-t1
Insertion: major=medial b/taping and inversion angle
Minor=upper medial border scapula
Action: adduct, elevate, downwordly rotate.
Levator scapula
Origin: transverse process of c1-c4
Insertion: superior angle scapula
Action: elevate, downdardly rotate, lateral flexation, rotate, extend
Deltoid
Origin: lateral 1/3 clavicle, acromion and spine of scapula
Insertion: deltoid tuberosity
Action: ABDUCT, flex, Mrotate, HAdduct , extend, Lrotate, Habduct
Latissimus Dorsi
Origin: inferior angle of scapula, SP last 6 thoracic , last 3 ribs, thoracolumbar aponeurosis and posterior iliac crest.
Insertion: intertubercle groove of humerus
Action: extend, adduct, Mrotate
Teres major
Origin: inferior angle and lower 1/3 lateral border of scapula
Insertion: crest of the lesser tubercle of humerus
Action: extend, adduct, Mrotate
Supraspinatus
Origin: supraspinous fossa of scapula
Insertion: greater tubercle of humerus
Action: abduct and stabilize
Teres minor
Origin: upper 2/3 lateral border scapula
Insertion: greater tubercle of humerus
Action: Lrotate, adduct, stabilize
Infraspinatus
Origin: infraspinous fossa of scapula
Insertion: greater tubercle humerus
Action: Lrotate, adduct, atbilize
Subscapularis
Origin: subscapular fossa of scapula
Insertion: lesser tubercle of humerus
Action: Mrotate, stabilize
Serratus anterior
Origin: external surfaces of upper 8 ribs
Insertion: anterior surface of medial border scapula
Action: abduct, UProtate, depressed, hold, elevate
Biceps brachii
Origin: short=coracoid
Long = Supraglenoid tubercle of scapula
Insertion: tuberosity of radius and aponeurosis on biceps brachii
Action: flex elbow, supinate, flex shoulder
Rectus femoris
Origin: anterior inferior iliac spine (AIIS)
Insertion: tibia tuberosity
Action extend the knee, flex the hip