Origin | 1- lateral dorsal ulna below the insertion of the Anconæus
2- the interosseous membrane
3- middle third dorsal surface of radius |
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Insertion | anterior aspect of the base of the first metacarpal |
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Action(s) | abducts and extends the thumb at CMC joint / wrist flexion / wrist abductor |
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Nerve Supply | PIN |
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Arterial Supply | Posterior Interosseous Artery |
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Physical Exam | Enter physical examination maneuvers for muscle |
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Clinical Importance | Enter clinical importance of muscle |
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Disease States | Enter links to pages where muscle involved |
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Discussion | Discussion on muscle |
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| Figures |
Attachments:
Last Updated on June 27, 2024
🧭 Surgical Approaches & Danger Zones
🩺 Clinical Conditions & Indications
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- Wrist fractures Introduction Summary about significance of fracture including epidemiology. Anatomy Review the relevant anatomy of the bone, the joint,...
- Wartenberg’s syndrome 1. High-Yield Summary Wartenberg's syndrome (cheiralgia paresthetica) is an entrapment neuropathy of the superficial branch of the radial...
- Viral arthritis 1. High-Yield Summary Viral arthritis is an acute, systemic infectious arthropathy characterized by transient or persistent synovial inflammation...
🔬 Anatomy, Pathology & Diagnostics
🕸️ Semantic Relations (RDF)
