Lacrimal bone - Location & Structure - Human Anatomy | Kenhub





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Published on Sep 10, 2015

This video covers the anatomy of the lacrimal bone, its location in the skull and relations to the other skull bones. Quiz yourself on the bones of the orbit at https://khub.me/mslw9

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The paired lacrimal bone is the smallest skull bone and sits inside the orbit on its anterior medial side. It matures through intramembranous ossification.

The lacrimal bone has two surfaces: a lateral (orbital) and medial (nasal) surface. The lateral surface features the lacrimal groove forming the fossa for the lacrimal sac, together with the lacrimal groove of the maxilla. Posteriorly the fossa is limited by the posterior lacrimal crest. The medial surface contributes to the middle nasal meatus and comes in contact with the ethmoid cells.

In this tutorial we will explore the most important features of the anatomy of the lacrimal bone:

- 0:09 lacrimal bone location and structure
- 0:33 lacrimal bone surfaces
- 1:09 relations to skull bones

Want to test your knowledge on the lacrimal apparatus? Take this quiz: https://khub.me/hx2a2

Read more on the bones of the orbit in our great, free article. This will give you more context and increase your understanding of the topography of the bones of the skull: https://khub.me/y7bzw

For more engaging video tutorials, interactive quizzes, articles and an atlas of Human anatomy and histology, go to https://khub.me/m85no


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