Forearm & Wrist Joint

• Ligaments between the Ulna, Lunate, and triquetrium?

  TFCC (Triangular Fibro Cartilage Complex)
• Weak radiocarpal ligaments would lead to?

  Radius only partially twisting over the ulna
• Muscles of the forearm are also called?

  Extrinsic muscles of the hand, because they do not originate on the hand
• Pronator for power and speed?

  Pronator teres
• Impingement site for median nerve or ulnar artery?

  Flexor digitorum superficialis
• Flexor pollicis longus attachment sites?

  Radius and interosseous membran

  Distal phalanx of digit 1
• Everyday pronator of the forearm?

  pronator quadratus
• Most injured nerve in the forearm is?

  Ulnar nerve
• Superficial branch of the radial nerve does what type of innervation?

  sensory
• Deep branch of the radial nerve does what type of innervation?

  motor
• Split between the superfical and deep branch of the radial nerve occurs at what muscle?

  supinator
• Insertion for all extensor tendons, lumbricals, and interosseous muscles?

  extension expansion/extensor hood
• Tear of the extensor hood would result in?

  hyperflexion at the DIP joint
• Abductor's also contribute to what action?

  radial deviation
• Distal radioulnar joint type of joint?

  Pivot joint
• Radiocarpal (wrist) joint type of joint?

  condyloid joint
• Intercarpal joints type of joint?

  plane joint
• Carpometacarpal joints (digits 2-5)

  plane joints
• Carpometacarpal joint (digit 1) type of joint?

  saddle joint
• Metacarpophalangeal joints type of joint?

  condyloid joints
• articular disc can also be referred to as

  triangular ligament
• Innervation to the wrist?

  Anterior interosseous nerve (median), posterior

  interosseous nerve (radial) and branches of ulnar nerve
• Blood supply to the wrist?

  Interosseous arteries, Dorsal

  and palmar arches
• Flexor retinaculum can also be referred to as?

  transverse carpal ligament
• What contributes to functionality of the digits?

  Long tendons for the forearm muscles
• Anterior compartment consists of flexors & _ ?

  pronators
• Posterior compartment consists of extensors & _ ?

  supinators
• Pronator teres, Flexor carpi radialis, Palmaris longus, & flexor carpi ulnaris share a common origin at?

  common flexor tendon

  medial epicondyle of the humerus
• Pronator teres, Flexor carpi radialis, Palmaris longus are innervated by?

  Median nerve (portions of C6,C7,C8)
• Flexor carpi ulnaris is innervated by

  ulnar nerve
• Pronator teres, Flexor carpi radialis, Palmaris longus, & FCU actions?

  pronators & flexors of the wrist
• Compression of the ulnar nerve in the cubital tunnel?

  cubital tunnel syndrome
• Small tears in the tendon ofcECRB lead to inflammation which is?

  Lateral epicondylitis or tennis elbow
• The periosteum of the lateral epicondyle can be affected by?

  small tears in the ECRB, tennis elbow
• Tennis elbow will have pain when doing what action?

  extending the wrist
• Supinator, Extensor digitorum, Extensor digiti minimi,

  ECU, Abductor pollicis longus, Extensor pollicis brevis,

  Extensor pollicis longus, Extensor indicis are innervated by?

  posterior interosseous nerve
• What two muscles create the anatomical snuffbox?

  Extensor pollicis longus and extensor pollicis brevis/abductor policis longus
• Dropped wrist can be caused by dysfunction of what nerve?

  radial nerve
• Claw hand can be caused by dysfunction of what nerve?

  ulnar nerve
• Ape hand can be caused by dysfunction of what nerve?

  Median nerve