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29 Απρ 2023 · The branches of the radial nerve provide motor supply for the posterior muscles of the arm and forearm, as well as the sensory supply of the skin of the arm, forearm and hand. Due to its length, the radial nerve is the most commonly injured nerve of the upper extremity.
Your radial nerve takes a winding path from your lower armpit to some of your fingers. It allows you to move muscles and feel skin sensations in certain parts of your upper arm, forearm, wrist and hand. Like other peripheral nerves in your body, your radial nerve can become damaged, causing symptoms like pain and muscle weakness.
20 Μαΐ 2024 · The radial nerve innervates the muscles located in the posterior arm and posterior forearm. In the arm, it innervates the three heads of the triceps brachii, which acts to extend the arm at the elbow. The radial nerve also gives rise to branches that supply the brachioradialis and extensor carpi radialis longus (muscles of the posterior forearm).
20 Ιουλ 2023 · The radial nerve travels down the arm, past the elbow joint, into the forearm, and across the wrist all the way into the fingers. Along the course of the radial nerve, there are small branches of the nerve within the forearm to deliver messages to the muscles and to provide sensation back to the brain.
Several major nerves continue from the arm into the forearm, including the radial, median, and ulnar nerves. These nerves control the forearm muscles that move the hands and fingers through tendons that pass through the wrist.
In the forearm the nerve powers all the muscles that straighten the wrist and fingers. Radial nerve injury can lead to wrist drop – the inability to straighten the wrist. The radial nerve also provides sensation to the thumb side of the back of the hand. Median nerve
5 Νοε 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. The motor branches stimulate the posterior arm muscles, posterior forearm muscles, and extrinsic wrist and hand extensors.
