Anterior cranial fossa	Bones: Orbital surface of frontal bone, lesser wing of sphenoid bone, cribriform plate of ethmoid bone Landmarks: Anterior ethmoidal foramen, cribriform foramina, sphenoidal yoke, foramen caecum, frontal crest Content: Frontal lobe of cerebrum, olfactory bulb, olfactory tract
Middle cranial fossa	Bones: Body and greater wings of sphenoid bone, squama and anterior surface of petrous part of temporal bone Landmarks: Chiasmatic sulcus, tuberculum sellae, anterior clinoid process, sella turcica, middle clinoid process, carotid sulcus, foramen lacerum, foramen spinosum, superior orbital fissure, foramen rotundum, foramen ovale, trigeminal impression, internal opening of carotid canal Content: Temporal lobe of cerebrum, pituitary gland
Posterior cranial fossa	Bones: Posterior surface of petrous part of temporal bone, occipital bone Landmarks: Clivus, foramen magnum, internal acoustic meatus, jugular foramen, hypoglossal canal Content: Brainstem, cerebellum

Cranial fossae

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