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			<gallery>
			File:Animation_of_C-2018_Y1_orbit_1600-2500.gif\|Animation of C/2018 Y1 orbit
			File:Planisphaerium_Ptolemaicum_siue_machina_orbium_mundi_ex_hypothesi_Ptolemaica_in_plano_disposita_(2709983277).jpg\|Ptolemaic Planisphere
			File:Moon_apsidal_precession.png\|Moon Apsidal Precession
			File:Newton_Cannon.svg\|Newton's Cannon
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Prab: CSV import

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'''Orbit''' refers to the cavity or socket of the skull in which the eye and its appendages are situated. The orbit is conical or four-sided pyramid-like in shape, with its apex pointed back into the head. There are seven bones that make up the human orbit.

== Anatomy ==

The seven bones that constitute the orbit are the frontal bone, the sphenoid bone, the zygomatic bone, the maxillary bone, the palatine bone, the lacrimal bone, and the ethmoid bone.

=== Frontal Bone ===

The [[Frontal bone|frontal bone]] forms the upper boundary of the orbit. Its lower margin is smooth and rounded, and presents, laterally, under cover of the zygomatic process, a shallow depression, the lacrimal fossa, for the lacrimal gland.

=== Sphenoid Bone ===

The [[Sphenoid bone|sphenoid bone]] contributes to the apex of the orbit, which points back into the head.

=== Zygomatic Bone ===

The [[Zygomatic bone|zygomatic bone]] forms the lateral high point of the face, and is generally considered the 'point' of the cheek.

=== Maxillary Bone ===

The [[Maxillary bone|maxillary bone]] forms the lower boundary of the orbit, the floor of the orbit.

=== Palatine Bone ===

The [[Palatine bone|palatine bone]] forms the back of the bottom part of the orbit.

=== Lacrimal Bone ===

The [[Lacrimal bone|lacrimal bone]] is the smallest and most fragile bone of the face; it is roughly the size of the little finger nail. It is situated at the front part of the medial wall of the orbit.

=== Ethmoid Bone ===

The [[Ethmoid bone|ethmoid bone]] is a singular porous bone that makes up the middle area of the viscerocranium and forms the midfacial region of the skull.

== See Also ==

* [[Eye socket]]
* [[Human skull]]
* [[Human skeleton]]

[[Category:Anatomy]]
[[Category:Human head and neck]]
[[Category:Skull]]

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Orbit - Revision history

Prab: CSV import

Prab: CSV import