Anterior cranial fossa

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The anterior cranial fossa (lat., "Anterior cranial fossa"), in animals fossa rostralis designates a recess in the inner cavity of the skull . It is made up of the central ethmoid bone ( os ethmoidale ) and the temporal and frontal bones placed on the side . The small wing of the sphenoid separates the anterior from the middle cranial fossa ( fossa cranii media ). The anterior cranial fossa contains Juga cerebralia (elevations for cerebral furrows) and Impressiones digitatae("Finger-shaped impressions" of the brain convolutions). In the middle of the pit rises a crest of bone, the crista galli (cockscomb), to which the cerebral sickle ( falx cerebri ), consisting of the hard meninges ( dura mater ), is attached. The foramen caecum is closed in adults.

Skull penetrations

Skull base, anterior cranial fossa (green)
Entry point content
Lamina cribrosa Fila olfactoria of the first cranial nerve

Anterior and posterior ethmoid arteries

Anterior meningeal artery

Vena ethmoidalis anterior and posterior

Anterior and posterior ethmoid nerves

Foramen caecum Vena emissaria

See also