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Questions and Answers
Where does the ulnar nerve enter the ulnar groove?
Where does the ulnar nerve enter the ulnar groove?
What is the arcade of Struthers?
What is the arcade of Struthers?
What is the humeral–ulnar aponeurosis (HUA) also known as?
What is the humeral–ulnar aponeurosis (HUA) also known as?
Which muscle does the ulnar nerve give muscular branches to in the proximal forearm?
Which muscle does the ulnar nerve give muscular branches to in the proximal forearm?
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What is another name for the ulnar nerve?
What is another name for the ulnar nerve?
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Study Notes
Ulnar Neuropathy Overview
- Ulnar neuropathy at the elbow (UNE) is the second most common upper extremity entrapment neuropathy, following carpal tunnel syndrome (CTS).
- Localizing the exact site of ulnar nerve lesions is often challenging using electrophysiological studies (EDX).
- The elbow is the primary site of ulnar nerve compression, but the nerve can also become entrapped at various locations, including the wrist.
- Symptoms of ulnar neuropathy may mimic those from lesions of the lower brachial plexus or C8–T1 nerve roots.
Role of Electromyography
- Electromyography (EMG) serves several crucial purposes in diagnosing ulnar neuropathy:
- Identifies the presence of an ulnar nerve lesion.
- Accurately localizes the site of the lesion.
- Helps exclude other disorders that present similar symptoms.
Anatomy of the Ulnar Nerve
- The ulnar nerve originates primarily from the C8 and T1 nerve roots, with a minor contribution from C7.
- All ulnar nerve fibers traverse through the lower trunk of the brachial plexus.
- The fibers then extend into the medial cord, where the terminal portion forms the ulnar nerve.
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Description
Test your knowledge about ulnar neuropathy at the elbow with this quiz. Learn about the causes, symptoms, and diagnosis of UNE. This quiz is suitable for physical therapy students and healthcare professionals.
