Kalmar "cerebral hemisphere" tana nufin ɗaya daga cikin ma'auni guda biyu na kwakwalwar kwakwalwa, wanda shine mafi girma kuma mafi girma a cikin kwakwalwa. Kowane sashin kwakwalwa yana da alhakin sarrafa kishiyar bangaren jiki, kuma yana shiga cikin ayyuka daban-daban da suka hada da jin dadi, fahimta, motsi, tunani, da motsin rai. Kwakwalwar kwakwalwa ta hagu yawanci tana da alaƙa da harshe, dabaru, da tunani na nazari, yayin da madaidaicin ƙwalwar kwakwalwa galibi ana danganta shi da ƙirƙira, sanin sararin samaniya, da sarrafa motsin rai.