Which branch of the infraorbital nerve supplies the skin of the lower eyelid?

• A. Inferior palpebral
• B. Superior palpebral
• C. External nasal
• D. Lateral palpebral

Answer: (A)

The infraorbital nerve, a terminal branch of V2, distributes sensation to the midface through several sub-branches. The branch that specifically goes to the lower eyelid is the inferior palpebral nerve. It travels to the skin (and conjunctiva) of the lower eyelid, providing sensory input there. That’s why this option is correct—the inferior palpebral nerve is the branch of the infraorbital nerve that supplies the lower eyelid.

For context, the superior palpebral nerves would supply the upper eyelid, the external nasal branch targets the nose region, and the lateral palpebral areas are not the primary infraorbital branches supplying the lower eyelid.