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. The nerve is the largest in the human body unprotected by muscle or bone, so injury is common. [1]

Ulnar nerve entrapment occurs when something irritates or puts pressure on your ulnar nerve that runs down your arm. Cubital tunnel syndrome affects your ulnar nerve in your elbow. It’s the most common type of ulnar nerve entrapment.

Ulnar nerve entrapment can cause pain, numbness and tingling in the forearm and the fourth and fifth fingers. In severe cases, ulnar nerve entrapment can cause weakness in the hand and loss of muscle mass. The condition occurs when the ulnar nerve becomes compressed as it passes through the wrist or elbow.

2024年9月18日 · 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. It...

2024年10月4日 · The ulnar nerve is a major peripheral nerve of the upper limb. In this article, we shall look at the applied anatomy of the nerve - its anatomical course, motor functions and cutaneous innervation. We shall also consider the clinical correlations of …

Your ulnar nerve helps you grip things with your hand and aids fine motor skills like writing. It also helps your hand and fingers feel things like heat, softness and pain. A tingling, funny-feeling sensation occurs when you bump your ulnar nerve in your elbow.

2023年7月5日 · The ulnar nerve is a terminal branch of the medial cord of the brachial plexus. It contains mainly fibers from the anterior rami of spinal nerves C8 and T1, but may sometimes carry C7 fibers as well. From its origin, the ulnar nerve courses distally through the axilla, arm and forearm into the hand.

Striking the medial epicondyle causes a tingling sensation in the ulnar nerve. The median nerve enters the forearm between the two heads of the muscle, and is separated from the ulnar artery by the ulnar head. He learns that fragments of his wristwatch blocked the right ulnar artery in his body after the collision, saving his life.

The ulna is a long bone found in the forearm that stretches from the elbow to the wrist, and when in standard anatomical position, is found on the medial side of the forearm. It is broader close to the elbow, and narrows as it approaches the wrist.

必应词典为您提供ulnar的释义，美['ʌlnə]，英['ʌlnə]，adj. 尺骨；尺侧的；近尺的；尸侧的； 网络释义： 尺动脉；尺神经；尺骨的；