What comes through inferior orbital fissure?

It transmits the: infra-orbital nerve (from the maxillary division of trigeminal nerve) zygomatic nerve (from the maxillary division of trigeminal nerve) a branch of the inferior ophthalmic vein and several emissary veins connecting it to the pterygoid venous plexus.

What is 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 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 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 …

Where is the inferior fissure of the orbit?

Inferior orbital fissure. Dr Andrew Dixon ◉ and Dr Prashant Mudgal et al. 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.

What are the symptoms of a superior orbital fissure?

Inflammation at the superior orbital fissure causes a severe retrobulbar ache, and usually a rapid and simultaneous onset of optic neuropathy, gross ophthalmoplegia, and periorbital sensory loss, with no perceptible proptosis and relatively few inflammatory signs (Fig. 17.22) ( Yeh and Foroozan, 2004 ).

Where is the fissure in the skull located?

Inferior orbital fissure. The skull from the front. (Label for inferior orbital fissure is at center right.) The medial wall and the floor of the orbit are separated posteriorly by the inferior orbital fissure which transmits the zygomatic branch of the maxillary nerve and the ascending branches from the pterygopalatine ganglion.

Is the trochlear nerve in the superior orbital fissure?

13.3.1 The superior orbital fissure The trochlear nerve occupies the medial aspect of the superior orbital fissure, where it is fairly large (Fig. 13.4). It is surrounded laterally by the frontal nerve and medially by the abducent. This technique is an osteomeningeal maneuver performed during the expansion phase (see Ch. 9).