Search results
The radial nerve is a nerve in the human body that supplies the posterior portion of the upper limb. It innervates the medial and lateral heads of the triceps brachii muscle of the arm, as well as all 12 muscles in the posterior osteofascial compartment of the forearm and the associated joints and overlying skin.
Apr 29, 2023 · Learn about the radial nerve, the largest nerve of the upper limb, that originates from the posterior cord of the brachial plexus and innervates the posterior muscles and skin of the arm and hand. Find out how radial nerve injuries can cause wrist drop, sensory loss and other symptoms.
- Medical Content
- 3 min
- Posterior cord of brachial plexus (C5-T1)
- In The Axilla
- In The Radial Groove
- In The Forearm
The radial nerve can be damaged in the axilla region by a dislocation at the shoulder joint, or a fracture of the proximal humerus. Occasionally, it is injured via excessive pressure on the nerve within the axilla (e.g. a badly fitting crutch). 1. Motor functions – the triceps brachii and muscles in posterior compartment are affected. The patient i...
The radial nerve is tightly bound within the spiral groove of the humerus. Thus, it is most susceptible to damage with a fracture of the humeral shaft. 1. Motor functions 1.1. The triceps brachii may be weakened, but is not paralysed (branches to the long and lateral heads of the triceps arise proximalto the radial groove). 1.2. Muscles of the post...
There are two terminal branches of the radial nerve located within the forearm. The typical mechanism of injury and effect of their injury differs:
- (287)
Learn about the radial nerve, one of the terminal branches of the posterior cord of the brachial plexus. Find out its course, branches, function, clinical relevance, assessment and treatment.
Learn about the radial nerve, a peripheral nerve that supplies movement and sensory function to parts of your arm, forearm, wrist and hand. Find out what can cause radial nerve damage, symptoms and how to keep your radial nerve healthy.
Jul 20, 2023 · Learn about the radial nerve, one of the major nerves of the upper extremity that provides sensation and motor function. Find out the causes and symptoms of radial nerve injury and how to treat it.
Nov 5, 2023 · The radial nerve is a peripheral nerve supplying specific parts of the arm, forearm, wrist, and hand (see Image. Posterior Upper Extremity Nerves). This nerve has both motor and sensory functions.
