Shoulder and Arm

Bones

Scapula (anterior)

Clavicle (anterior)

Humerus (anterior)

Muscles

Trapezius (posterior; reviewed as back muscle)

Deltoid

Biceps brachii

Coracobrachialis

Brachialis

Muscles (posterior)

Triceps brachii

Clavicle and ends

Connects upper limb to the trunk

Sternal end- articulates with the manubrium of the sternum

Acromial end- articulates with the acromion of the scapula

Scapula

Triangular flat bone that lies on the posterolateral aspect of the thorax

Humerus

Largest bone of upper limb

Articulates with scapula at the glenohumeral joint and the radius and ulna at the elbow joint

Joints of shoulder (4)

Acromioclavicular joint- acromion and clavicle

Sternoclavicular joint- sternum and clavicle

Coracoclavicular joint- coracoid process and clavicle

Glenohumeral- scapula (glenoid fossa) and humerus (head)

Shoulder Girdle and movements

Scapula and clavicle

Connects upper limbs to the axial skeleton

Elevation and depression

Abduction and adduction (protraction and retraction)

Shoulder joint and movements

Scapula and humerus

Flexion

Extension

Abduction

Adduction