Floor Of Oral Cavity Muscles
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Muscular diaphragm comprised of the bilateral mylohyoid muscles.
Floor of oral cavity muscles. A mucous membrane known as the oral mucosa is composed of stratified squamous epithelium and forms the inner lining of the mouth. It provides structural support to the floor of the mouth and pulls the larynx forward during swallowing. This region is divided into right and left halves by the lingual frenulum and contains the ostia of the submandibular and sublingual salivary glands. Geniohyoid muscles pull the larynx forward during swallowing.
It is bounded by a roof a floor and lateral walls. The floor of mouth is an oral cavity subsite and is a common location of oral cavity squamous cell carcinoma. For purposes of surgical planning the floor of the mouth is defined as the space between the mucosal surface and the mylohyoid muscle sling and comprising both structures 1. The floor of the mouth is a small horseshoe shaped region situated beneath the movable part of the tongue and above the muscular diaphragm formed by the mylohyoid muscles and above this diaphragm is the genohyoid muscle.
These include the hard palate floor of the mouth buccal mucosa including the upper and lower gingivobuccal sulci retromolar trigone and anterior two thirds or oral portion of the tongue and lips figs. The oral cavity is situated anteriorly on the face under the nasal cavities. The floor is formed by the mylohyoid muscles and is occupied mainly by the tongue. The mylohyoid muscles constitute the floor of the oral cavity proper.
The floor of the oral cavity consists of several structures. Inferiorly it has various oral muscles glands tongue attachment to the oral cavity floor 7 through the flexible band of tissues known as lingual frenulum 21. The oral cavity encompasses several relatively discrete regions. The mylohyoid genioglossus and geniohyoid muscles comprise the muscular floor of the oral cavity.
A mucous membrane the oral mucosa lines the sides and under surface of the tongue to the gums lining the inner aspect of the jaw mandible. The floor of the mouth is a horizontally aligned u shaped space situated in the part of the oral cavity that lies beneath the tongue. The oral cavity proper is also surrounded by mucus membrane continuing from the vestibular walls 10.
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