The term cerebral hemisphere (CHS) refers to a topologically paired structure of the cerebrum (EBR). Defined by dissection. It is found in the human, macaque, rat and mouse ( NeuroNames ). The left CHS (CHSl) and right CHS (CHSr) are separated by the longitudinal fissure (lf). Each CHS is composed of cerebral cortex (CTX), cerebral white matter (cw) and basal ganglia (BGN) ( Carpenter-1983 ). Updated 30 Oct 2024.