Structures

  • Biceps brachii
  • Brachialis
  • Brachioradialis
  • Pronator teres
MuscleActionOriginInsertionInnervationBlood supply
Biceps Brachii - Flexion of elbow
- Supination of forearm
- Short head: Coracoid process
- Long head: Supraglenoid Fossa
- Radial tuberosity- Musculocutaneous nerve- Brachial artery
Brachialis- Flexion of elbow- Distal half of anterior humerus- Ulna tuberosity- Musculocutaneous nerve- Brachial artery
Brachioradialis- Assists with flexion of elbow when forearm in mid-pronation- Proximal 1/2 of lateral supracondyle ridge of humerus- Lateral surface of distal radius- Radial nerve: C5,6,7- Radial recurrent artery
Pronator teres- Pronation
- Weak flexion of elbow
- Humeral head: medial epicondyle of humerus
- Ulnar head: Coronoid process
- Middle of lateral radial surface- Median nerve: C6,7- Ulnar artery