What cranial nerve passes through the inferior orbital fissure?
The maxillary nerve exits from the cranial cavity through the foramen rotundum. From this point, the nerve traverses the superior part of the pterygopalatine fossa and swings laterally to traverse the inferior orbital fissure toward the maxillary sinus.
What does inferior orbital fissure connect?
The lateral 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.
What leaves the inferior orbital fissure?
Inferior Orbital Fissure It is a space between the sphenoid and maxilla bones. The zygomatic branch of the maxillary nerve and the infraorbital artery and vein pass through the inferior orbital fissure.
What bones make up the inferior orbital fissure?
The inferior orbital fissure lies on the floor of the orbit. The superior border is the greater wing of the sphenoid, and the maxilla and palatine bone compose the inferior border, with the zygomatic bone laterally….The following seven bones form the orbit:
- Sphenoid.
- Frontal.
- Zygomatic.
- Ethmoid.
- Lacrimal.
- Maxilla.
- Palatine.
Which of the following structures does not pass through inferior orbital fissure?
Correct Answer: Ophthalmic artery.
What is the bone above your eye called?
The eye socket, or orbit, is the bony cup surrounding your eye. Seven different bones make up the socket. The eye socket contains your eyeball and all the muscles that move it.
Which foramina and fissures are associated with the orbit?
Foramina and fissures of the skull
| Foramen caecum | Emissary veins |
|---|---|
| Optic canal | Optic nerve (CNII), ophthalmic artery, dural sheath of optic nerve |
| Superior orbital fissure | Oculomotor nerve (CNIII), trochlear nerve (CN IV), ophthalmic division of the trigeminal nerve (CNV1), abducent nerve (CNVI), ophthalmic veins |