Copy Right-Hq The Oral Cavity Consists of two parts Oral vestibule: between cheeks and lip and teeth Oral cavity proper: within arch of teeth Boundaries of oral cavity proper Anterior and lateral: gum and teeth Posterior: isthmus of fauces ◆Roof: palate Floor: tongue, muscles and mucous membrane Oral vestibule leads, by the space behind the molar teeth into the oral cavity proper upy riyn-runyyr LnA/vu-DeJalueln UI Anatomy-FudaCopy Right- Hongqi ZHANG-Department of Anatomy-Fudan University Copy Right- Hongqi ZHANG-Department of Anatomy-Fudan University The Oral Cavity Consists of two parts  Oral vestibule : between cheeks and lip and teeth  Oral cavity proper: within arch of teeth Boundaries of oral cavity proper  Anterior and lateral: gum and teeth  Posterior: isthmus of fauces  Roof: palate  Floor: tongue, muscles and mucous membrane Oral vestibule leads, by the space behind the molar teeth, into the oral cavity proper