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The radial nerve is the largest nerve of the upper limb. It originates as the terminal branch of the posterior cord of the brachial plexus. The radial nerve arises in the axillary region and descends down along the posterior surface of the humerus.
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).
The radial nerve and its branches provide motor innervation to the dorsal arm muscles (the triceps brachii and the anconeus) and the extrinsic extensors of the wrists and hands; it also provides cutaneous sensory innervation to most of the back of the hand, except for the back of the little finger and adjacent half of the ring finger (which are ...
The radial nerve is one of the terminal branches of the posterior cord. In the axilla, it lies behind the axillary and upper brachial arteries and passes anterior to the tendons of teres minor, latissimus dorsi and subscapularis.
Radial nerve originates from the posterior cord of the brachial plexus (C5-T1) behind axillary artery. Course. Posterior wall axilla. courses on the posterior wall of the axilla (on subscapularis, latissimus dorsi, teres major) 3 Branches in axilla. posterior cutaneous nerve of the arm. branch to long head of triceps.
Your radial nerve is a peripheral nerve that supplies movement and sensory function to parts of your arm, forearm, wrist and hand. You have a radial nerve in each of your arms. It’s called “radial” because part of it runs alongside the radius bone (and the radial artery) in your forearm.
The median nerve innervates the digit pads of the lateral 3-1/2 fingers, while the ulnar nerve supplies the medial 1-1/2 digit pads. The radial nerve originates from the ventral rami of the spinal nerves C5 to T1 and is part of the posterior cord of the brachial plexus.
The radial nerve is a peripheral nerve of the upper extremity. Injuries to the radial nerve can cause numbness and a condition called wrist drop.
The radial nerve is one of the major peripheral nerves of the upper limb and is crucial for both sensory and motor functions. It originates from the posterior cord of the brachial plexus and primarily innervates the extensor muscles of the forearm.
The radial nerve is a mixed nerve that carries both motor and sensory innervation. The motor branches of the radial nerve innervate the long and medial heads of triceps brachii muscle, anconeus muscles, brachialis (lateral half), brachioradialis, and extensor carpi radialis longus muscles.