The supraorbital nerve block targets which nerve?

The supraorbital nerve block targets which nerve?

• A. CN II
• B. CN III
• C. Branch of CN V
• D. CN VI

Answer: (C)

Sensation of the forehead is carried by branches of the trigeminal nerve, specifically a branch of the ophthalmic division (CN V1) known as the supraorbital nerve. A supraorbital nerve block therefore targets this branch of CN V to interrupt sensory input from the forehead and surrounding skin. The optic nerve (CN II) is involved only in vision, not facial sensation, while the oculomotor (CN III) and abducens (CN VI) nerves control eye movements and do not convey forehead sensory information. So the correct target is a branch of CN V.

Sensation of the forehead is carried by branches of the trigeminal nerve, specifically a branch of the ophthalmic division (CN V1) known as the supraorbital nerve. A supraorbital nerve block therefore targets this branch of CN V to interrupt sensory input from the forehead and surrounding skin. The optic nerve (CN II) is involved only in vision, not facial sensation, while the oculomotor (CN III) and abducens (CN VI) nerves control eye movements and do not convey forehead sensory information. So the correct target is a branch of CN V.