2. Skull radiograph, lateral projection

Note the diploic space visualized between the inner and outer tables of the frontal bone.

The sella turcica outlines the hypophyseal fossa; it cradles the pituitary gland.

The cribiform plate of the ethmoid bone forms part of the roof of the nasal cavity.

The small radiolucencies projecting near the external auditory meatus represent the mastoid air cells in the temporal bone.