Mepụta ụdị nkebi ahịrịokwu a dị mgbagwoju anya A na-akọwapụta ha ọzọ, na lobe elu nwere akụkụ apical, anterior na posterior.
N'ezie, ụdị okwu dị mgbagwoju anya nke ahịrịokwu ahụ bụ "Ndị a na-akọwapụtakwu, na lobe elu nwere akụkụ apical, nke dị n'ihu na nke azụ, lobe etiti nwere akụkụ medial na akụkụ, na lobe ala nwere akụkụ ise, elu, n'ihu, azụ, medial na akụkụ. "