Cephalad: toward the head, along the central line of the body.
Cephalic: belonging or attached to the head; directed toward the head.
Cephalic bristles: Diptera; specialized bristles occurring on the head.
Cephalic foramen: the posterior or occipital foramen of head through which the dorsal vessel, oesophagus, salivary ducts and ventral nerve cords pass from head to prothorax.
Cephalization: concentration toward the head.
Cephalomere: one of the head segments of an arthropod.
Cephalophragm: a v-shaped partition which divides the head of some Orthoptera, into an anterior and posterior chamber.
Cephalon: the head.
Cephalosome: the head as one of the three regions.
Cephalotheca: the head covering in the pupal stage.