The supraorbital nerve is a terminal branch of the frontal nerve

Frontal nerve

The frontal nerve is the largest branch of the ophthalmic nerve, and may be regarded, both from its size and direction, as the continuation of the nerve....

.

It passes through the supraorbital foramen

Supraorbital foramen

The supraorbital foramen is a bony elongated path located above the orbit and under the forehead. The supraorbital foramen lies directly under the eyebrow....

, and gives off, in this situation, palpebral filaments to the upper eyelid

Eyelid

An eyelid is a thin fold of skin that covers and protects an eye. With the exception of the prepuce and the labia minora, it has the thinnest skin of the whole body. The levator palpebrae superioris muscle retracts the eyelid to "open" the eye. This can be either voluntarily or involuntarily...

. Additionally it supplies the conjunctiva

Conjunctiva

The conjunctiva covers the sclera and lines the inside of the eyelids. It is composed of rare stratified columnar epithelium.-Function:...

 of the eye, the frontal sinus

Frontal sinus

Sinuses are mucosa-lined airspaces within the bones of the face and skull. The frontal sinuses, situated behind the superciliary arches, are absent at birth, but are generally fairly well developed between the seventh and eighth years, only reaching their full size after puberty...

 and the skin from the forehead extending back to the middle of the scalp.

Branches

It then ascends upon the forehead

Forehead

For the Arsenal striker see GervinhoIn human anatomy, the forehead is the fore part of the head. It is, formally, an area of the head bounded by three features, two of the skull and one of the scalp. The top of the forehead is marked by the hairline, the edge of the area where hair on the scalp...

, and ends in two branches, a medial and a lateral, which supply the integument of the scalp, reaching nearly as far back as the lambdoidal suture; they are at first situated beneath the Frontalis

Frontalis

Frontalis may refer to:* Crista frontalis, the frontal crest, a crest on the internal surface of the squama frontalis of the frontal bone* Frontalis muscle, a thin, quadrilateral fascia muscle located on the front of the head...

:

• the medial branch perforates the muscle.
• the lateral branch perforates the galea aponeurotica
  Galea aponeurotica
  The galea aponeurotica is a tough layer of dense fibrous tissue which covers the upper part of the cranium; behind, it is attached, in the interval between its union with the Occipitales, to the external occipital protuberance and highest nuchal lines of the occipital bone; in front, it forms a...
  
  .

Both branches supply small twigs to the pericranium.

External links

• http://www.dartmouth.edu/~humananatomy/figures/chapter_47/47-2.HTM