Kogon baka yana nufin baki da tsarin halittar jiki wanda ya hada da lebe, harshe, hakora, danko, da kuma rufin baki. Shi ne kashi na farko na tsarin narkewar abinci inda ake shan abinci kuma ya fara rushewa ta hanyar enzymes a cikin miya. Hakanan rami na baka yana taka muhimmiyar rawa wajen sadarwa, yana ba mu damar yin magana da yin sauti iri-iri.
