A(n) ___gyrus___ is an elevated ridge of cerebral tissue. Inward folds of cerebral tissue are called _____graymatter__ or __?

A(n) ___gyrus___ is an elevated ridge of cerebral tissue. Inward folds of cerebral tissue are called _____graymatter__ or __?____. Gray matter is composed of __graymatter___. white matter is composed of ______. A fiber tract that provides for communication between different parts of the CNS is called _____, whereas one that carries impulses between periphery and CNS areas is called a(n)______. Nuclei deep within the cerebral hemisphere white matter are collectively call the ______