Which foramina and fissures are associated with the orbit

K , Orbital aspect of the right inferior orbital fissure. The inferior orbital fissure has long anterior and posterior borders and narrow medial and lateral ends. The long posterior edge is formed by the greater wing. The long anterior wall is formed by the orbital surface of the maxilla, except for a short posterior segment formed by the orbital process of the palatine bone. The narrow lateral end is formed by the zygomatic bone, and the narrow medial end is formed by the sphenoid body.

The posteromedial part of the fissure communicates below with the pterygopalatine fossa, and the anterolateral part communicates with the infratemporal fossa. The orbital smooth muscle spans the upper part of the fissure. L , Anterior aspect of the right optic canal and an anomalous ophthalmic foramen. In this specimen there is a foramen in the optic strut, referred to as an ophthalmic foramen, that transmits the ophthalmic artery.

M , Anterolateral view of the right zygomaticofacial foramina. The zygomaticofacial foramina transmit the zygomaticofacial branches of the maxillary nerve. The zygomatic nerve arises from the maxillary nerve in the pterygopalatine fossa and passes through the inferior orbital fissure to course along the lateral wall of the orbit, where it divides into zygomaticofacial and zygomaticotemporal branches.

The branches enter the zygomatico-orbital foramina on the orbital surface of the zygomatic bone. The zygomaticofacial branches exit the zygomaticofacial foramina to supply the cheek. The zygomaticotemporal nerve gives a branch to the lacrimal nerve as it passes along the inferolateral margin of the orbit.

Images with Highlights. Images with Labels. Like us on Facebook. Follow us on Twitter. Subscribe to our YouTube channel. You can make a difference. Donate Not now. Moreover, some distances were significantly different between sides or genders.

Conclusion: The present results suggest that race, side, and gender should be concerned during the orbital surgery and the data are good references for Thai subjects. Abstract Background: The anatomy of orbital foramina appears to vary depending on the population studied Moreover; different data between sides and genders have been reported.