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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.
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).
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.
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.
29 Οκτ 2019 · bottom line = Safe zone posteriorly of 10 cm distal to the lateral acromion and 10 cm proximal to lateral epicondyle. branches in spiral groove. inferior lateral cutaneous nerve of the arm. posterior cutaneous nerve of the forearm. branch to lateral head of triceps.
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.
20 Ιουλ 2023 · The radial nerve provides information to the muscles of the back of the arm and forearm about when to contract. Specifically, the triceps muscle in the back of the arm and the extensor muscles of the back of the forearm are the major muscle groups that are supplied by the radial nerve.