Where does the radial nerve give off its posterior interosseous branch?
Understand the Problem
The question is asking for the anatomical location where the radial nerve gives off its posterior interosseous branch. This requires knowledge of human anatomy, specifically the anatomy of the arm and forearm.
Answer
After the radial nerve pierces the supinator muscle in the forearm.
The posterior interosseous branch of the radial nerve is given off after the nerve pierces the supinator muscle in the forearm.
Answer for screen readers
The posterior interosseous branch of the radial nerve is given off after the nerve pierces the supinator muscle in the forearm.
More Information
The posterior interosseous nerve is a continuation of the deep branch of the radial nerve. It traverses the supinator muscle to supply muscles in the posterior forearm.
Tips
A common mistake is confusing the specific point of origin of the posterior interosseous branch with other branches of the radial nerve. Ensuring a clear understanding of the anatomy is crucial.
Sources
- Radial nerve: origin, course and function | Kenhub - kenhub.com
- Posterior Interosseous Nerve - Anatomy - Orthobullets - orthobullets.com
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