the skull (superior view)

olfactory foramina

holes in the ethmoid bone's cribriform plate that allow the olfactory nerve to pass through

cribriform plate

a thin, rectangular bone in the ethmoid bone that forms the roof of the nasal cavity and separates the brain from the nasal cavity

crista galli

a triangular, wedge-shaped bone process that projects into the skull's cranial cavity

foramen rotunda

anterior to the foramen ovale

internal acoustic canal

superior to jugular foramen

petrous portion of the temporal bone

oblique ridge spanning from clivus, laterally

dorsum sella

posterior point of sella turcica

hypophyseal fassa

middle, dipped portion of sella turcica

tuberculum sellae

anterior point of sella turcica

clivus

slant from sella turcica to magnum foramen