====== ELBOW JOINT ======


  * Elbow joint 
  *  Type 
  *  Hinge joint 
  * Articular surfaces 
  *  Upper 
  *  Capitulum and trochlea of humerus 
  * Coronoid fossa 
  *  Coronoid process of ulna
  * Radial fossa 
  *  For radial head 
  * 
  * Lower 
  *  Upper surface of head of radius articulates with capitulum 
  * Trochlear notch of ulna 
  *  Articulates with trochlea of humerus 
  * 
  * Cubital articulations 
  *  Superior radioulnar joint
  *  Humeroradial joint 
  * Humeroulnar joint 
  * 
  * Ligaments 
  *  Capsular ligament 
  *  Superiorly 
  *  Attached to lower end of humerus 
  *    Intracapsular structures are 
  *    Capitulum , trochlea , radial fossa , coronoid fossa , olecranon fossa 
  * Inferomedially 
  *  Attached to margin of trochlear notch of ulna except laterally 
  * Inferolaterally 
  *  Attached to annular ligament of superior radioulnar joint 
  * Thickenings of capsule 
  *  Anterior ligament 
  *  Posterior ligament 
  * 
  * Ulnar collateral ligament 
  *  Triangular in shape 
  *  Attached 
  *   Apex to medial epicondyle of humerus 
  *  Base to ulna 
  *  Bands 
  *   Thick anterior and posterior bands 
  *  Attached   Below to coronoid process and olecranon process 
  * Lower ends joined together by 
  *  Oblique band 
  * 
  * Radial collateral or lateral ligament 
  *  Fan shaped band extending from
  *    Lateral epicondyle to annular ligament 
  * Gives origin to 
  *  Supinator , extensor carpi radialis brevis 
  * 
  * 
  * Relations
  * Anteriorly
  *  Brachialis , median nerve , brachial artery , tendon of biceps brachii 
  * Posteriorly 
  *  Triceps brachii , anconeus 
  * Medially 
  *  Ulnar nerve , flexor carpi ulnaris , common flexors 
  * Laterally 
  *  Supinator , extensor carpi radialis brevis 
  * 
  * Blood supply 
  *  Anastomosis around elbow joint 
  * 
  * Nerve supply 
  * Ulnar , median , radial , musculocutaneous 
  * 
  * Movements 
  * Flexion 
  *  Brachialis , biceps brachi , brachiradialis 
  * Extension 
  *  Triceps , anconeus 
  * 
  * 
  * Carrying angle 
  *  Transverse axis of elbow joint 
  *    Directed medially and dowards 
  *  Extended forearm is not in straight line 
  *   13 degree angle 




| Type          | Hinge joint                                                                                            |
| Bones         | Humerus, radius, ulna                                                                                  |
| Mnemonics     | CRAzy TULips (Capitulum = RAdius, Trochlea = ULna)                                                     |
| Ligaments     | Ulnar collateral ligament, radial collateral ligament, annular ligament, quadrate ligament             |
| Blood supply  | Proximal to elbow joint - Ulnar collateral artery, radial collateral artery, middle collateral artery  |
|               | Distal to elbow joint - Radial recurrent artery, ulnar recurret artery                                 |
| Movements     | Flexion - Biceps brachii, Brachialis, Brachioradialis muscles                                          |
|               | Mnemonic: 3 B's bend the elbow                                                                         |
|               | Extension - Triceps brachii muscle                                                                     |
| Clinical      | Fractures, epicondylitis, arthritis, venipunctures                                                     |