This video will explore the definition, location and function of the sphenoid bone in the base of the skull. Start the sphenoid bone quiz on https://khub.me/uq3kn

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The sphenoid bone is the most complex bone in the human body. It makes up most of the middle part of the base of the skull and contributes to the floor of the middle cranial fossa. The sphenoid bone consists of four parts: the body (corpus), the lesser and greater wings (alae minores et majores) and the pterygoid processes.

The bone contains several important openings, such as the foramen rotundum (→ maxillary nerve) and the foramen ovale (→ mandibular nerve, accessory meningeal artery) and more.

The body and lesser wings of the sphenoid bone mature through classic endochondral ossification, whereas the pterygoid processes undergo intramembranous ossification.

In this video tutorial we cover all the relevant information about the anatomy of the sphenoid bone:

0:10 introduction to the sphenoid bone
0:29 sphenoid bone parts
0:46 body of the sphenoid
1:32 lesser wings
1:53 greater wings, foramina and fissures
3:03 pterygoid processes and canals
3:31 sphenoid bone borders
4:03 enchondral and intramembranous ossification

Want to test your knowledge on the main bones of the head? Take this quiz: https://khub.me/kxed5

Read more on the development of the skull in our free article in order to reach a much deeper understanding about how this complex arrangement is formed during the embryological development: https://khub.me/q9533

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