anterior arm muscles

• biceps brachii origin

  -long head: supraglenoid tubercle of scapula

  -short head: coracoid process
• biceps brachii insertion

  radial tuberosity
• biceps brachii action


  supinate forearm, flexes at elbow and shoulder
• brachialis origin

  distal 1/2 of anterior humerus
• brachialis insertion

  coronoid process and ulnar tuberosity
• brachialis action


  flex at elbow
• coracobrachialis origin

  coracoid process
• coracobrachialis insertion

  medial humerus shaft
• coracobrachialis action

  flex at shoulder and adduct humerus
• anterior arm muscles innervation

  musculocutaneous nerve