Upper limb origins + insertions

origin + insertion of pectoralis major

origin - anterior border of medial third of clavicle

anterior aspect of sternum

costal cartilages of ribs 1-6

anterior rectus sheath

insertion - lateral lip of intertubercular sulcus (bicipital groove)

primary movements of pectoralis major

humeral flexion

humeral adduction

internal rotation of humerus

horizontal adduction of humerus

origin + insertion of latissimus dorsi

origin - spinous process T7-L5

posterior half of iliac crest

ribs 9-12

inferior angle of scapula

insertion - intertubercular sulcus (bicipital groove)

primary movements of latissimus dorsi

humeral extension

humeral adduction

internal rotation of humerus

origin + insertion of trapezius

origin - external occipital protuberance + superior nuchal line of occipital bone

nuchal ligament

spinous processes of C7-T12 vertebrae

insertion - posterior aspect of lateral third of clavicle

acromion

spine of scapula

primary movements of trapezius

scapular elevation (upper fibres)

scapular upward rotation (upper + lower fibres)

neck extension + lateral flexion (upper fibres if scapula fixed)

scapular retraction (middle fibres)

scapular depression (lower fibres)

origin + insertion of deltoid

origin - lateral third of clavicle

acromion

spine of scapula

insertion - deltoid tuberosity of humerus

primary movements of deltoid

humeral flexion (anterior)

humeral internal rotation (anterior)

humeral adduction (anterior)

humeral abduction (middle)

humeral extension (posterior)

humeral external rotation (posterior)

humeral horizontal abduction (posterior)

origin + insertion of teres major

origin - posterior aspect of inferior angle of scapula

insertion - crest of lesser tubercle of humerus

primary movements of teres major

humeral extension

humeral adduction

humeral internal rotation

origin + insertion of biceps brachii

origin - supraglenoid tubercle of scapula

apex of coracoid process

insertion - radial tuberosity

primary movements of biceps brachii

elbow flexion

forearm supination

humeral flexion (long head)

origin + insertion of brachialis

origin - lower half of anterior surface

insertion - ulnar tuberosity

coronoid process

primary movements of brachialis

elbow flexion

origin + insertion of brachioradialis

origin - upper two thirds of lateral supracondylar ridge

insertion - lateral surface of distal end of radius (just proximal to radial styloid process)

primary movements of brachioradialis

elbow flexion

supination

origin + insertion of triceps brachii

origin - posterior surface of humerus

infraglenoid tubercle of scapula

insertion - olecranon process of ulna

primary movements of triceps brachii

elbow extension

shoulder extension (long head)

humeral adduction