Search results
Results from the WOW.Com Content Network
Superior orbital fissure syndrome, also known as Rochon-Duvigneaud's syndrome, [4] [5] 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 .
The nasociliary nerve enters the orbit via the superior orbital fissure, [citation needed] through the common tendinous ring, [1] and between the two heads of the lateral rectus muscle and between the superior and inferior rami of the oculomotor nerve. [citation needed] It passes across the optic nerve (CN II) along with the ophthalmic artery.
The brow ridges are often not well expressed in human females, as pictured above in a female skull, and are most easily seen in profile. The brow ridge, or supraorbital ridge known as superciliary arch in medicine, is a bony ridge located above the eye sockets of all primates and some other animals.
There are two important foramina, or windows, two important fissures, or grooves, and one canal surrounding the globe in the orbit. 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.
An orbital blowout fracture is a traumatic deformity of the orbital floor or medial wall that typically results from the impact of a blunt object larger than the orbital aperture, or eye socket. [1] Most commonly this results in a herniation of orbital contents through the orbital fractures. [ 1 ]
The common tendinous ring spans the superior orbital fissure and can be described as having two parts – an inferior tendon which gives origin to the inferior rectus muscle, and to part of the lateral rectus muscle; and a superior tendon which gives origin to the superior rectus muscle, and to part of the medial and lateral recti muscles.
Cavernous sinus/Superior orbital fissure [ edit ] The nerve runs in the sinus body adjacent to the internal carotid artery and oculo-sympathetic fibres responsible for pupil control, thus, lesions here might be associated with pupillary dysfunctions such as Horner's syndrome .
A superior tympanic artery runs in the canal of the tensor tympani muscle, and supplies this muscle and the lining of the canal. Orbital branches pass through the superior orbital fissure or through separate canals in the great wing of the sphenoid, to anastomose with the lacrimal or other branches of the ophthalmic artery.