| Supraorbital notch | |
|---|---|
| The skull from the front. ("Supraorbital foramen" is top caption on right side.) | |
| Frontal bone. Outer surface. ("Supraorbital notch or foramen" labeled at bottom right.) |
The Supraorbital notch is a small groove at superior and medial margin of the orbit in the frontal bone. The supraorbital nerve passes through this notch prior to dividing into superficial and deep components that provide sensory innervation to the ipsilateral forehead. The supraorbital nerve is a branch of the frontal nerve arising from the ophthalmic division of the trigeminal nerve (cranial nerve V)[1].
In vivo, it is often covered with connective tissue to form a supraorbital foramen.