HUMB1004 Study Guide - Final Guide: Ulnar Nerve, Radial Nerve, Coracoid Process

• School: Curtin University
• Department: Human Biology
• Course: HUMB1004
• Professor: Morgan Titmus

Document Summary

Elbow flexor, stabilizer in fast movements, brings antebrachium into mid pronation (because has an att 2 rad) Elbow extensor, weak shoulder extensor, no impact on sup/pronation because not attached to radius at all. Insets onto ulnar so has no impact on proximal or distal radioulnar joints, so no pro/sup. Pronates forearm and hand, deep fibres bind radius and ulna together. Bifurcates and inserts on middle phalanx of 2-5. Flexes digits at interphalangeal joints, flexes the wrist. Anterior forearm muscles deep layer finger flexors. Extend the wrist joint + abduct (radially deviate the wrist) Extend the wrist joint + weakly radially deviate (doesn"t really have the line of pull) Extends the fingers 2-5 and wrist @ carpus. Extends the wrist @ carpus and very good ulnar deviator. Medial border of the snuffbox is the tendon of the extensor pollicis longus. Lateral border is the tendon of the extensor pollicis brevis and abductor pollicis longus.