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arm&shoulder muscles

lab help

QuestionAnswer
Pectoralis minor O: ribs I: coracoid process A: brings scapula down & forward
teres major O: inferior angle of the scapula I: lessesr tubercle A: extends arm
serratus anterior O: ribs I: medial border of scapula A: abducts and flexes arm at shoulder
pectoralis major O: clavicle sternum and ribs I: greater tubercle A: adducts and flexes arm
brachialis O: humerus I: coronoid process A: flexes the elbow
which 2 muscles holds head of humerus in place? supraspinatus & infraspinatus
Brachioradialis O: humerus I: styloid process of radius A: flexes the elbow
trapezius 2 orgins and actions O: occipital bone A: elevates scapula O:spines of thoracic vertebrae A: depresses scapula I: acromion, spine of scapula, and clavicle
levator scapulae O: transverse processes of cervical vertebrae I: top of the scapula A: elevates scapula
latissimus dorsi O: lumbodorsal fascia (mostly) I: intertubercular groove A: extends arm
supraspinatus O:supraspinous fossa I:greater tubercle A: rotator cuff muscle
infraspinatus O: infraspinous fossa I: greater tubercle A: rotator cuff muscle
biceps brachii O: coracoid process and intertubercular groove I:radial tuberosity A: flexes elbow
deltoid O: clavicle , acromion process and spine of scapula I:deltoid tuberosity A: abducts arm
triceps brachii O: glenoid fossa & humerus I: olecranon process A: extends forearm
Created by: tcanter0312