TOPIC 7: SPHENOID BONE
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12 Terms
How many sphenoid bones are there?
1.
Why is the sphenoid called the "keystone" bone of the skull?
It articulates with all the other cranial bones and connects the cranium and face.
What are the greater and lesser wings?
Parts of the sphenoid bone that extend from its central region.
What is the sella turcica?
A saddle
What is the hypophyseal fossa?
The depression within the sella turcica that houses the pituitary gland.
What is the function of the optic canal/foramen?
It provides a passageway for the optic nerve.
What are the pterygoid processes?
Projections of the sphenoid bone with medial and lateral parts.
What is the foramen ovale?
An opening in the sphenoid that provides passage for nerves and blood vessels.
What is the foramen rotundum?
An opening in the sphenoid that provides passage for nerves and blood vessels.
What is the foramen lacerum?
An opening associated with the sphenoid region that provides passage for structures.
What is the foramen spinosum?
An opening in the sphenoid that provides passage for nerves and blood vessels.