29 DBMS_DDL. This package provides access to some SQL data definition language (DDL) statements from stored procedures. It also provides special administration operations that are not available as Data Definition Language statements (DDLs).
Anatomy of the mouth. The mouth, consists of 2 regions, the vestibule and the oral cavity proper. The vestibule is the area between the teeth, lips and cheeks. The oral cavity is bounded at the sides and in front by the alveolar process (containing the teeth) and at the back by the isthmus of the fauces.
The main Parts of the Mouth. The Lips. The lips are the soft parts of tissue at the front edge of the cheeks that form the anterior boundary of the mouth. They are covered externally by skin and internally by the same mucous membrane (mucosa) that lines the entire oral cavity.