The optic foramen is the opening to the optic canal. The canal is located in the sphenoid bone; it is bounded medially by the body of the sphenoid and laterally by the lesser wing of the sphenoid.
The superior surface of the sphenoid bone is bounded behind by a ridge, which forms the anterior border of a narrow, transverse groove, the chiasmatic groove (optic groove), above and behind which lies the optic chiasma; the groove ends on either side in the optic foramen, which transmits the optic nerve and ophthalmic artery (with accompanying sympathetic nerve fibres) into the orbital cavity. Compared to the optic nerve, the ophthalmic artery is located inferolaterally within the canal.
The left and right optic canals are 25mm apart posteriorly and 30mm apart anteriorly. The canals themselves are funnel-shaped (narrowest anteriorly).
Compared to the optic nerve, the ophthalmic artery is located inferolaterally within the canal. The left and right optic canals are 25mm apart posteriorly and 30mm apart anteriorly. The canals …
06 Mar 2024 · The optic canal is a round opening located in the posteromedial part of the orbit, within the lesser wing of the sphenoid bone, when viewing the orbit from an anterior …
23 Mei 2023 · The optic canal is a cylindrical canal running obliquely through the lesser wing of sphenoid bone near the base where it joins the body of sphenoid. It transmits the optic nerve …
The optic canal is a funnel-shaped (narrowest anteriorly) structure as part of the sphenoid bone that extends from the optic foramen to the orbital apex, the posterior-most end of the orbit.
08 Agu 2023 · The optic canal connects the orbit to the middle cranial fossa and transmits the optic nerve, ophthalmic artery, meningeal sheaths, and sympathetic nerve fibers. The optic …
The optic canal is a bony channel in the sphenoid bone that serves as a pathway for the optic nerve and ophthalmic artery from the middle cranial fossa to the apex of the orbit.
24 Jul 2023 · The optic canal is an obliquely oriented channel through the lesser wing of the sphenoid bone, opening into the bony skull base as the optic foramen. The intracranial optic …
The optic canal: This is a bony opening that your optic nerves pass through to enter your skull and reach your brain. The optic chiasm (pronounced “KY-az-mm”): This Y-shaped junction is …
12 Jan 2024 · Optic canal enlargement can be caused by numerous etiologies. The optic canal has an average transverse diameter of 3.6 ± 0.6 mm 1. The optic canal can be considered …
17 Jan 2025 · The optic canal is a small bony tunnel that is located within the skull. It is situated within the sphenoid bone, which is a central bone located at the base of the skull. The optic …
