Which branch of the infraorbital nerve supplies the skin on the lateral aspect of the nose?

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Dive into the Pertinent Anatomy of Maxillary Local Anesthesia Test. Study with comprehensive flashcards and multiple choice questions. Each question provides hints and explanations. Prepare for your exam success!

Multiple Choice

Which branch of the infraorbital nerve supplies the skin on the lateral aspect of the nose?

Explanation:
The infraorbital nerve provides several cutaneous branches to the midface, each serving a specific facial skin region. The external nasal branch travels along the external surface of the nose and innervates the skin of the external nose, including areas on the lateral aspect. That makes it the branch most closely matching the skin on the side of the nose. The inferior palpebral branch goes to the lower eyelid, and the superior labial branch to the upper lip, while the lateral nasal branch supplies the nasal sidewall. So for skin on the lateral aspect of the nose, the external nasal branch is the correct one.

The infraorbital nerve provides several cutaneous branches to the midface, each serving a specific facial skin region. The external nasal branch travels along the external surface of the nose and innervates the skin of the external nose, including areas on the lateral aspect. That makes it the branch most closely matching the skin on the side of the nose. The inferior palpebral branch goes to the lower eyelid, and the superior labial branch to the upper lip, while the lateral nasal branch supplies the nasal sidewall. So for skin on the lateral aspect of the nose, the external nasal branch is the correct one.

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