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Jun 25, 2024 · Orbital rim fracture – This is a fracture of the bones forming the outer rim of the bony orbit. It usually occurs at the sutures joining the three bones of the orbital rim – the maxilla, zygomatic and frontal. ‘Blowout’ fracture – This refers to partial herniation of the orbital contents through one of its walls.
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- Structure
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The orbital cavity is a four-walled, pyramid-shaped structure that is formed by several bones of the skull, including the frontal bone, zygomatic bone, sphenoidbone, and ethmoid bone. The orbital cavity is bounded by the orbital margin, a bony ridge that encircles the orbit and separates it from the surrounding facial structures. It is divided into...
The orbital cavities are located within the skull, one on each side of the head. They are situated in the frontal bone, just above the nasal cavity and below the frontal lobe of the brain. The orbital cavities are separated by a thin partition of bone called the septum orbitale. They are located in a strategic position within the skull, providing p...
The main function of the orbital cavity is to house and protect the eye and its associated structures. The orbital cavity provides a stable and supportive environment for the eye, allowing it to move and function properly. The orbital cavity also plays a vital role in vision. The eye is able to move within the orbital cavity, allowing it to focus o...
The orbital cavity is susceptible to a variety of disorders and conditions that can affect the eye and its associated structures. Some of the more common disorders that can affect the orbital cavity include orbital cellulitis, orbital fractures, and orbital tumors.
Jul 4, 2019 · Just below superior fissure between the lateral wall and the floor of the orbit. Connects to pterygopalatine and inferotemporal fossae. Close to foramen rotundum and pterygoid canal. Transmits infraorbital branch (V2), zygomatic branch (V2), orbital nerve from pterygopalatine ganglion, inferior ophthalmic vein.
Apr 29, 2023 · Eye Anatomy: Parts of the Eye Outside the Eyeball. The eye sits in a protective bony socket called the orbit. Six extraocular muscles in the orbit are attached to the eye. These muscles move the eye up and down, side to side, and rotate the eye. The extraocular muscles are attached to the white part of the eye called the sclera. This is a ...
Nov 3, 2023 · The apex of the orbit is the optic foramen (canal), bound medially by the body of the sphenoid bone and laterally by the lesser wing of the sphenoid bone. It is medial to the superior orbital fissure. The optic foramen provides passage for the optic nerve (CN II) and ophthalmic artery to exit the skull.
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Orbital Anatomy. The orbital cavities are large bony sockets that house the eyeballs with associated muscles, nerves, blood vessels and fat. Each orbit is pear-shaped with the optic nerve representing the stem. The medial walls of the orbit are almost parallel and border the nasal cavity anteriorly. The lateral walls, however, diverge at an ...
