Medical Dictionary

cranial fossa

noun

medical Definition of cranial fossa

:any of the three large depressions in the posterior, middle, and anterior aspects of the floor of the cranial cavity:
a :the posterior one that is the largest and deepest of the three and lodges the cerebellum, pons, and medulla oblongata called also posterior cranial fossa, posterior fossa
b :the middle one that lodges the temporal lobes laterally and the hypothalamus medially called also middle cranial fossa, middle fossa
c :the anterior one that lodges the frontal lobes called also anterior cranial fossa, anterior fossa

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