Explain the structure of the mouth.

(N/A) The mouth is the anterior opening of the alimentary canal.
It leads into the oral or buccal cavity.
The oral cavity contains a number of teeth and a muscular tongue.
The roof of the oral cavity is formed by the palate,which consists of an anterior hard palate and a posterior soft palate.
The uvula is a small,fleshy projection hanging from the middle of the soft palate.
The sides of the oral cavity are formed by muscular cheeks,which are connected to the lips.
The lips are muscular folds covered by skin on the outer surface and a mucous membrane on the inner surface.
The lower jaw contains the hyoid bone,to which the tongue is attached.