The ulnar nerve is a nerve that runs near the ulna, one of the two long bones in the forearm. The ulnar collateral ligament of elbow joint is in relation with the ulnar nerve.

What is the ulnar nerve? Your ulnar nerve is a single nerve in a network known as the peripheral nervous system, which carries information to and from your brain by route of your spinal cord. Your …

Sep 17, 2024 · What Does the Ulnar Nerve Do? The ulnar nerve function is to control movement (motor control). It carries signals from the brain that activate the muscles in your forearms, wrist, and hand.

Nov 16, 2025 · The ulnar nerve is one of the major nerves of the upper extremity. Injury to the ulnar nerve, known as lesions, can cause symptoms of weakness, tingling, and numbness.

The ulnar nerve branches off the brachial plexus nerve system and travels down the back and inside of the arm to the hand. The ulnar nerve transmits electrical signals to muscles in the forearm and hand.

Nov 6, 2025 · The ulnar nerve is a major peripheral nerve of the upper limb. In this article, we shall look at the anatomy of the ulnar nerve – its anatomical course, motor and sensory functions, and its …

Jun 15, 2025 · Ulnar nerve lesions cause claw hand, sensory loss in the medial hand, and weakness of grip. Most often due to trauma, compression, or neuropathy.

The ulnar nerve originates from C8-T1 nerve roots which form the medial cord of the brachial plexus. The ulnar nerve runs down the hand, where it passes behind the medial epicondyle of the humerus …

Jul 24, 2023 · The ulnar nerve originates from contributions of the ventral rami of C8 and T1 nerve roots. The nerve courses along the medial arm and forearm, and then it passes into the wrist, hand, and …

The ulnar nerve is one of the three main nerves in your arm. It travels from your neck down into your hand and can be constricted in several places along the way, such as beneath the collarbone or at …