Muscles Of Oral Cavity Floor

Having selected the food then the mouth ingests the food takes the food in masticates the food chews it and swallows the food so that it goes down to the rest of the digestive tract.

Muscles of oral cavity floor. Anteriorly it opens to the face through the oral fissure while posteriorly the oral cavity communicates with the oropharynx through a narrow passage called the oropharyngeal isthmus also termed the. The most important muscle of inspiration is the. The primary function of the oral cavity is firstly the selection of food via taste yes but also of course via smell and sight. The mylohyoid muscle is flat and triangular and is situated immediately superior to the anterior belly of the digastric muscle it is a pharyngeal muscle derived from the first pharyngeal arch and classified as one of the suprahyoid muscles together the paired mylohyoid muscles form a muscular floor for the oral cavity of the mouth.

It is kept moist by the products of the major and minor salivary glands which aids the organ as it facilitates deglutition speech and gustatory perception while there is significant variability in the length of the tongue among individuals on average the organ is roughly 10 cm. The oral cavity is situated anteriorly on the face under the nasal cavities. The functions of the oral cavity. But there are secondary functions.

The floor of mouth is a u shaped space which extends and includes from the oral cavity mucosa superiorly and the mylohyoid muscle sling 2 3. The two mylohyoid muscles arise from the. The floor of the oral cavity consists of several structures. Muscular diaphragm comprised of the bilateral mylohyoid muscles.

Structures that pass through the aperture includes muscles. Muscles that help form the floor of the oral cavity. It provides structural support to the floor of the mouth and pulls the larynx forward during swallowing. The posterior part of the oral cavity is referred to as the mouth proper.

It is bordered by the hard palate in the upper front while the soft palate constitutes the upper back boundary 10 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. Muscles that compress the cheeks to help keep food between the grinding surfaces of the teeth while chewing. Under normal circumstances the tongue is a pink muscular organ located within the oral cavity proper. During radiologic imaging for tnm classification of squamous cell carcinomas of the oral cavity and the floor of the mouth it is important to assess the extrinsic muscles of the tongue which include the hyoglossus and genioglossus muscles and the mandible as invasion of these structures is indicative of a t4 lesion figs 21 22.