Biology of the mouth

[Hina Muqadas]

The mouth is the entrance to both the digestive and the respiratory systems. The inside of the mouth is lined with mucous membranes. When healthy, the lining of the mouth (oral mucosa) is reddish pink. The gums (gingivae) are paler pink and fit snugly around the teeth.
The palate, which is the roof of the mouth, is divided into two parts. The front part has ridges and is hard (hard palate). The back part is relatively smooth and soft (soft palate).
The moist mucous membranes lining the mouth continue outside, forming the pink and shiny portion of the lips, which meets the skin of the face at the vermilion border. The lip mucosa, although moistened by saliva, is prone to drying.
The uvula is a narrow muscular structure that hangs at the back of the mouth and can be seen when a person says