buccal cavity n.
The portion of the oral cavity bounded by the lips, cheeks, and gums. Also called vestibule of mouth.
In the first case the nasal cavity, in the others the orbital or buccal cavity, were generally concurrently involved.
Balbiani describes the buccal cavity as containing a protractile stylet.
In Amphibia and Amniota the posterior nares also open well within the boundary of the buccal cavity.
Correlated with this mode of feeding the buccal cavity is without the teeth so characteristic of the adult.
The ear communicates with the buccal cavity by the Eustachian tube, so does the branchial chamber by means of the gill-slits.
The removal of loose fragments is necessary in all cases in which the buccal cavity is involved.
The greater part of the buccal cavity is filled with the tongue and jaws just described.
A decoction of the powder gives good results as a gargle for aphthæ, gingivitis, and other inflammations within the buccal cavity.
Rod-like cuticular continuation of inner jaw, lying in a pit of the buccal cavity.
A buccal cavity, a pharynx, an oesophagus and an intestine are always distinguishable.