Cranial Fontanelles
Any of six membrane-covered openings between the CRANIAL SUTURES in the incompletely ossified skull of the fetus or newborn infant. The fontanelles normally close sometime after birth.
Cranial Fossa, Anterior
Cranial Fossa, Posterior
The infratentorial compartment that contains the CEREBELLUM and BRAIN STEM. It is formed by the posterior third of the superior surface of the body of the sphenoid (SPHENOID BONE), by the occipital, the petrous, and mastoid portions of the TEMPORAL BONE, and the posterior inferior angle of the PARIETAL BONE.