(of an insect) The first part of the stomodaeum, lying just within the mouth; its dilator muscles arising on the clypeus, and inserted before the frontal ganglion and its connectives.
Origin of buccal-cavity
buccal (“of or pertaining to the cheek or mouth”) + cavity (“hollow area”)
Buccal-cavity Sentence Examples
This differentiation is not, however, peculiar to the Polychaetes; for in several Oligochaetes the anterior nephridia are of large size, and opening as they do into the buccal cavity clearly play a different function to those which follow.
A gizzard is present in a few forms. The buccal cavity is sometimes armed with jaws.
v, Buccal cavity w, Gonad.
The paired ctenidia are very greatly developed right and left of the elongated body, and form the most prominent organ of the group. Their function is chiefly not respiratory but nutritive, since it is by the currents produced by their ciliated surface that food-particles are brought to the feebly-developed mouth and buccal cavity.
Two pairs of salivary glands open into the buccal cavity.