Oral cavity anatomy

Roof of Mouth The roof of the mouth, or palate, forms the superior and posterosuperior boundaries of the “oral cavity proper,” which it separates from the nasal cavity and nasopharynx. The region of approximately the anterior two thirds of the palate has a bony framework and is, therefore, the hard palate; the posterior third is the soft palate. The palate is variably arched both anteroposteriorly and transversely, the transverse curve being more pronounced in the hard palate. The bony…

mouth structure pharynx

Anterior view of the oral cavity.

Oral Cavity The mouth, or oral cavity, is the beginning of the alimentary canal. Its roof is formed by the palate, the tongue rises up out of its floor, and the cheeks and lips form its boundaries laterally and anteriorly. The mouth communicates anteriorly with the external environment by the rima oris, or oral orifice, and posteriorly with the pharynx through the isthmus of the fauces. The oral cavity is divided into the vestibule and oral cavity proper by the teeth and alveolar processes…

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Definition of the oral cavity| Their Structure and parts in the Oral Cavity | What is the functions of oral cavity in human mouth| Role in Speech Production

Benign Tumors of Oral Cavity Tumors of the oral cavity are very diversified. Only a select few can be discussed here. A fibroma may be found on the gingiva, lips, palate, and buccal mucosa. It is hard or soft and pale or reddish, depending on the density of collagen and the abundance of vascular elements. The gingival fibroma (fibrous epulis) is usually derived from the periosteum. It is sessile or pedunculated, well defined, and slow growing. The papilloma is soft and pedunculated or, when…