A(n) ______ is an elevated ridge of cerebral tissue. Inward folds of cerebral tissue are called _______ or ______. Gray matter is composed of _____....

A(n) ______ is an elevated ridge of cerebral tissue. Inward folds of cerebral tissue are called _______ or ______. Gray matter is composed of _____. 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 ______