Search results
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.
- Maxillary Sinus
The maxillary sinus is the largest paranasal sinus situated...
- Lacrimal Apparatus
Lacrimal artery (lateral-left view) The facial nerve leaves...
- Maxillary Sinus
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.
- (108)
Jul 24, 2023 · The orbits are bony structures of the skull that house the globe, extraocular muscles, nerves, blood vessels, lacrimal apparatus, and adipose tissue. Each orbit protects the globe, while the supportive tissues allow the globe to move in three dimensions (horizontal, vertical, and torsional).[1][2] The anatomy of the orbit is a complex topic vital for understanding the communication between the ...
- Nicholas Luibil, Michael J. Lopez, Bhupendra C. Patel
- 2023/07/24
- 2019
Jul 24, 2023 · The following seven bones form the orbit: The orbit is a pear shape, with the optic nerve at the stem, and holds approximately 30 cc volume. The entrance to the globe anteriorly is approximately 35 mm high and 45 mm wide. The depth from orbital rim to the orbital apex measures 40 to 45 mm in adults. The maximum width is 1 cm behind the anterior ...
- Caleb L. Shumway, Mahsaw Motlagh, Matthew Wade
- 2023/07/24
- 2021
- Structure
- Location
- Function
- Clinical Significance
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.
Unlike classic anatomy, which typically describes the soft contents of the orbit in craniocaudal layers after removal of the floor of the anterior cranial fossa, namely, the orbital roof, a periorbital dissection proceeds in anteroposterior direction without osteotomies of the bony rims or walls starting at the aditus over the midorbit toward the entrance into the apex along the lower and/or ...
People also ask
What is the orbital cavity?
What is the function of the orbits in a human body?
What is a bony orbit?
What happens if the orbit is fractured?
What is an orbital fracture?
What is the floor of the orbit?
The orbit, or eye socket, is the cavity located in the skull in which the eye and its associated appendages are housed. The orbits are conical, sometimes described as four-sided pyramidal, cavities that open in the midline of the face and point backwards. To the rear of the orbit, the optic foramen opens into the optical canal through which the ...
