What passes through superior and inferior orbital fissure?
Structures passing through this fissure : superior and inferior divisions of oculomotor nerve (III), trochlear nerve (IV), lacrimal, frontal and nasociliary branches of ophthalmic (V1), abducens nerve (VI), superior and inferior divisions of ophthalmic vein, inferior division also passes through the inferior orbital …
What passes through the inferior orbital fissure?
The lateral wall and the floor of the orbit are separated posteriorly by the inferior orbital fissure which transmits the maxillary nerve and its zygomatic branch, and the ascending branches from the pterygopalatine ganglion.
What comes out of superior orbital fissure?
The lacrimal, frontal and trochlear nerves, as well as the ophthalmic vein, pass through the superior orbital fissure outside of the annulus of Zinn. The superior and inferior divisions of cranial nerve III, cranial nerve VI, and the nasociliary nerve pass through the fissure within the Annulus of Zinn.
What is the inferior orbital fissure?
The inferior orbital fissure (IOF) lies in the floor of the orbit inferior to the superior orbital fissure and it is bounded superiorly by the greater wing of sphenoid, inferiorly by maxilla and orbital process of palatine bone and laterally by the zygomatic bone. It opens into posterolateral aspect of orbital floor.
What is the function of the superior orbital fissure?
Function. The superior orbital fissure functions as a bony aperture through which many important structures pass from the brain into the orbit.
Where is the superior orbital fissure?
The superior orbital fissure is a bony cleft found at the orbital apex between the roof and lateral wall. It is a communication between the orbital cavity and middle cranial fossa and is bounded by the greater wing, lesser wing and body of sphenoid.
Where does the superior orbital fissure lead to?
The superior orbital fissure is a foramen or cleft in the skull. It lies between the lesser and greater wings of the sphenoid bone….
| Superior orbital fissure | |
|---|---|
| Part of | sphenoid bone |
| System | skeletal |
| Identifiers | |
| Latin | fissura orbitalis superior |
What is inferior orbital fissure?
What does superior orbital fissure mean?
The superior orbital fissure is the communication between the cavernous sinus and the apex of the orbit. It is straddled by the tendinous ring which is the common origin of the four rectus muscles (extraocular muscles).
Where is the orbital fissure?
Anatomical terms of bone The superior orbital fissure is a foramen or cleft in the skull. It lies between the lesser and greater wings of the sphenoid bone.
What is the superior orbital fissure?
Where is the inferior fissure of the orbit?
The inferior orbital fissure ( IOF) lies in the floor of the orbit inferior to the superior orbital fissure and it is bounded superiorly by the greater wing of sphenoid, inferiorly by maxilla and orbital process of palatine bone and laterally by the zygomatic bone. It opens into posterolateral aspect of orbital floor.
What are the symptoms of superior orbital fissure syndrome?
Superior orbital fissure syndrome, also known as Rochon-Duvigneaud’s syndrome, is a neurological disorder that results if the superior orbital fissure is fractured. Involvement of the cranial nerves that pass through the superior orbital fissure may lead to diplopia, paralysis of extraocular muscles, exophthalmos, and ptosis.
Where is the fissure of the great wing?
This fissure is of a triangular form, and leads from the cavity of the cranium into that of the orbit. below, by the medial margin of the orbital surface of the great wing; and is completed laterraly by the frontal bone.
Where is the superior fissure in the skull?
Description. The superior orbital fissure is a foramen in the skull, although strictly it is more of a cleft, lying between the lesser and greater wings of the sphenoid bone.