The posterior part of the buccal cavity is called___
(a) pharynx
(b) mouth
(c) oesophagus
(d) stomach
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Explanation:
The oral cavity spans between the oral fissure (anteriorly – the opening between the lips), and the oropharyngeal isthmus (posteriorly – the opening of the oropharynx).
It is divided into two parts by the upper and lower dental arches (formed by the teeth and their bony scaffolding). The two divisions of the oral cavity are the vestibule, and the mouth cavity proper.
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