Mathematics. the identity element of a group in which the operation is addition. (of a function, especially of a function of a complex variable) a point at which a given function, usually a function of a complex variable, has the value zero; a root.
Mucosa buccalis. The inner lining of the cheeks and lips, which is an anatomic region that includes all the mucous membrane lining of the inner surface of the cheeks and lips, from the line of contact of the opposing lips to the line of attachment of mucosa to the alveolar ridges and pterygomandibular raphe, which occupies an area of 50â60 cm2.
Buccal area-the mouth area of the squid, including the oral cavity and radula. 10. Radula-the scraping organ of feeding in mollusks, structured as a bird's beak in squid and octopi. 11. Esophagus-tube that passes food from the mouth to the stomach. 12. Stomach-digests food polymers into smaller polymers and monomers.