NCIt related terms : Structure of posterior fossa of cranial cavity (body structure);
NCIt definition : The infratentorial compartment of the cranial cavity. Its boundaries are formed by
the sphenoid bone, temporal bone, and parietal bone, and it contains the cerebellum
and brain stem.;
Alternative definition : UBERON: 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.;