Anchor the pterygoid muscles.

Anchor the pterygoid muscles. → E

Passageway for optic nerve.

Passageway for optic nerve. → A

Encloses hypophysis.

Encloses hypophysis. → C

Forms parts of the middle cranial fossa, dorsal walls of the orbits, and external walls of the skull.

Forms parts of the middle cranial fossa, dorsal walls of the orbits, and external walls of the skull. → B

Allow cranial nerves that control eye movements to enter the orbit.

Allow cranial nerves that control eye movements to enter the orbit. → D
