Supraorbital foramen

supraorbitalsupraorbital notchbonebrow ridge
The supraorbital foramen, is a bony elongated opening located above the orbit (eye socket) and under the forehead.wikipedia
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Orbit (anatomy)

orbitorbitseye socket
The supraorbital foramen, is a bony elongated opening located above the orbit (eye socket) and under the forehead.
There is a supraorbital foramen, an infraorbital foramen, a superior orbital fissure, an inferior orbital fissure and the optic canal, each of which contains structures that are crucial to normal eye functioning.

Supraorbital nerve

supraorbitalsuperior orbital nervesupra-orbital
The supraorbital foramen arches transversely below the superciliary arches and is the upper part of the brow ridge, thin and prominent in its lateral two-thirds, rounded in its medial third, and presenting, at the junction of these two portions, the supraorbital foramen or notch for the supraorbital nerve and vessels (supraorbital artery and supraorbital vein.) The supraorbital nerve passes through this notch prior to dividing into superficial and deep components that provide sensory innervation to the ipsilateral forehead.
It passes through the supraorbital foramen, and gives off, in this situation, palpebral filaments to the upper eyelid.

Supraorbital artery

supraorbitalsupra-orbitalartery
The supraorbital foramen arches transversely below the superciliary arches and is the upper part of the brow ridge, thin and prominent in its lateral two-thirds, rounded in its medial third, and presenting, at the junction of these two portions, the supraorbital foramen or notch for the supraorbital nerve and vessels (supraorbital artery and supraorbital vein.)
It passes upward on the medial borders of the superior rectus muscle and levator palpebrae superioris, meeting the supraorbital nerve accompanies it between the roof of the orbit and levator palpebrae superioris to the supraorbital notch.

Supraorbital vein

supraorbitalvein
The supraorbital foramen arches transversely below the superciliary arches and is the upper part of the brow ridge, thin and prominent in its lateral two-thirds, rounded in its medial third, and presenting, at the junction of these two portions, the supraorbital foramen or notch for the supraorbital nerve and vessels (supraorbital artery and supraorbital vein.)
Previous to its junction with the frontal vein, it sends through the supraorbital notch into the orbit a branch which communicates with the ophthalmic vein; as this vessel passes through the notch, it receives the frontal diploic vein through a foramen at the bottom of the notch.

Brow ridge

supraorbital ridgebrow ridgessuperciliary arches
The supraorbital foramen arches transversely below the superciliary arches and is the upper part of the brow ridge, thin and prominent in its lateral two-thirds, rounded in its medial third, and presenting, at the junction of these two portions, the supraorbital foramen or notch for the supraorbital nerve and vessels (supraorbital artery and supraorbital vein.) The supraorbital nerve is a branch of the frontal nerve arising from the ophthalmic division of the trigeminal nerve (cranial nerve V). The foramen sits on the inmost, lower margin of a groove splitting the supraorbital ridge into a central and two distal sections.
They proposed (as first articulated by Biegert in 1957) that during infancy the neurocranium extensively overlaps the orbit, a condition that prohibits brow ridge development.

Eyebrow

eyebrowsbrowbrow shaping
The supraorbital foramen lies directly under the eyebrow.

Anatomical terms of location

ventraldorsalanterior
The supraorbital nerve passes through this notch prior to dividing into superficial and deep components that provide sensory innervation to the ipsilateral forehead.

Frontal nerve

frontal
The supraorbital nerve is a branch of the frontal nerve arising from the ophthalmic division of the trigeminal nerve (cranial nerve V). The foramen sits on the inmost, lower margin of a groove splitting the supraorbital ridge into a central and two distal sections.

Trigeminal nerve

trigeminalVfifth cranial nerve
The supraorbital nerve is a branch of the frontal nerve arising from the ophthalmic division of the trigeminal nerve (cranial nerve V). The foramen sits on the inmost, lower margin of a groove splitting the supraorbital ridge into a central and two distal sections.

Outline of human anatomy

Human anatomyAnatomyoutline
Supra-orbital notch (Supra-orbital foramen)

Pinniped

sealsealspinnipeds
The anterior end of an otariid's frontal bones extends between the nasal bones, and the supraorbital foramen is large and flat horizontally.

Lagomorpha

lagomorphlagomorphsrabbit
Also, pikas have a short nasal region and entirely lack a supraorbital foramen, while leporids have prominent supraorbital foramina and nasal regions.

Squamous part of the frontal bone

squamasquama frontalissuprasquamal
At the junction of its medial and intermediate thirds is a notch, sometimes converted into a foramen, the supraorbital notch or foramen, which transmits the supraorbital vessels and nerve.

Migraine surgery

Structures that are found pressing on the nerves here are released and may include bone at the upper orbit, fascia, blood vessels, or muscle tissue.

Homo sapiens

anatomically modern humanshumanmodern humans
Early modern people and some living people do however have quite pronounced brow ridges, but they differ from those of archaic forms by having both a supraorbital foramen or notch, forming a groove through the ridge above each eye.

Supratrochlear nerve

supratrochlearsupra-trochlear nerves
The supratrochlear nerve then exits the orbit between the pulley of the superior oblique and the supraorbital foramen, curves up on to the forehead close to the bone, and ascends beneath the corrugator supercilii and frontalis muscles.

Gaoligong pika

A skeletal distinction can be seen in the Gaoligong Pika which lacks a supraorbital process in the skull skeletal feature and have a long and broad posterior nasal bone.

Homo ergaster

H. ergasterErgastH. erectus
H. ergaster may be distinguished from H. erectus by its thinner skull-bones and lack of an obvious supraorbital foramen, and from H. heidelbergensis by its thinner bones, more protrusive face, and lower forehead.

Infraorbital foramen

Foramen infraorbitaleinfraorbital foraminaforamen on the maxilla
The ramifications of the three principal branches of the trigeminal nerve—at the supraorbital, infraorbital, and mental foramen—are distributed on a vertical line (in anterior view) passing through the middle of the pupil.

Animantarx

The most recent cladistic analysis of ankylosaur phylogeny does not include Animantarx, although the authors recognize the genus as Nodosauridae incertae sedis because of its rounded supraorbital protrusions and a "knoblike" acromion on the scapula.