craniopharyngeal

adjective

cra·​nio·​pha·​ryn·​geal ˌkrā-nē-ō-ˌfar-ən-ˈjē-əl  -fə-ˈrin-j(ē-)əl 

: relating to or connecting the cavity of the skull and the pharynx

the craniopharyngeal canal connecting the hypophyseal diverticulum with buccal ectoderm in the fetus