Fichas
Ulnar nerve
Fichas del conjunto (7)
- 1Ulnar nerve-arises from the medial cord of the brachial plexus with nerve contributions from C7-T1
- 2Pathway1. C7-T1
2. travels anteriorly to shoulder joint through axilla & enters into septum btwn biceps and triceps where it courses down posteromedial arm
3. wraps around medial epicondyle through tunnel defined by arcade of struthers and medial intermuscular septum superiorly & flexor carpi ulnaris distally
4. travels down posteromedial forearm passes under Gyon's tunnel into ring and little finger - 3muscle innervations- flexor carpi radialis
- flexor digitorum profundus
- interossei
- adductor pollicus
- flexor carpi ulnaris
- flexor digiti minimi
- palmar interossei
- opponens digiti minimi - 4Compression sites- damage to this nerve most commonly seen with throwing sports
- usually damaged in 2 significant points - 5Cubital tunnel entrapment sites (compression site)d/t
1. traction injuries from increased valgus force, fracture or injury to the growth plate or MCL disruption.
- pain in medial elbow & radiating into medial arm
2. thickend arcuate ligament, hypertrophied medial triceps, anconeus or ulnar flexor ms at wrist
- numbness & tingling in medial forearm, ring and little finger
- pain in resisted elbow extension or wrist flexion
3. osteophytes in ulnar groove
4. sublux/shifting of nerve over medial epicondyle, leading to fibrosis - 6Tunnel of Gyron (compression site)1. ulnar nerve and artery pass through this tunnel btwn hook of hamate and pisiform
- can become compressed under thickened fibrosseus band under pisohamate ligament - 7AssessmentTest with ULTT 4
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- college (Upper limb nerves) Ortho Fichas sobre Ulnar nerve, creado por Keisha Whisken el 04/10/2015.
- Creado por
- Keisha Whisken
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