(also alisphenoid bone)
nounAnatomy & Zoology
A wing-like cartilaginous bone within a mammal’s skull forming part of the socket of the eye.
- The outer wall of the braincase becomes the alisphenoid and the dermal skull bones.
- As a reminder, the pterygoid is a dermal bone; and the alisphenoid is retreaded epipterygoid which traces its ultimate origin to the palatoquadrate and the gill arch series.
- Posteromedial to the glenoid surface, the foramen ovale opens in the alisphenoid.
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