Muscle That Forms Floor Of Mouth

The floor of mouth is an oral cavity subsite and is a common location of oral cavity squamous cell carcinoma.

Muscle that forms floor of mouth. Floor of the mouth 1. Floor of the mouth. Forms a sling that supports the structures of the mouth origin. From above the mouth floor is reinforced by the geniohyoid muscles and from below by the anterior bellies of the digastric muscles.

When cancer forms in this area it s called floor of mouth cancer. The genioglossus muscle geniohyoid muscle mylohyoid muscle and the anterior belly of the digastric muscle form the muscular diaphragm of the mouth floor. In addition to its primary role as the beginning of the digestive system in humans the mouth also plays a significant role in communication while primary aspects of the voice are produced in the. However not all cysts affecting the floor of the mouth are cancerous.

Cedars sinai explains that this type of cancer makes up 28 to 35 percent of all mouth cancers. All suprahyoid muscles contribute to the floor of the mouth but the actual muscle plate which bridges between the two rami of mandible is formed by the mylohyoid muscles oral diaphragm. 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. The mylohyoid muscle is flat and triangular and is situated immediately superior to the anterior belly of the digastric muscle.

In rare circumstances oral cancer can affect this muscle. 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. In human anatomy the mouth is the first portion of the alimentary canal that receives food and produces saliva. The lingual nerve a branch of the posterior trunk of the mandibular division of the trigeminal nerve provides sensation to the floor of the mouth.

Includes elevating the floor of the mouth and hyoid bone as well as depressing the mandible. Dr nida sumra 2. The squamous epithelium at the mucosal surface and other superficial anatomic components of the floor of the mouth are easily evaluated at physical examination the mylohyoid muscle sling is formed by the paired mylohyoid muscles which arise from the inner surface of the mandible extend from the symphysis anteriorly to the last molar tooth posteriorly and insert onto the posterior aspect. The oral mucosa is the mucous membrane epithelium lining the inside of the mouth.

Together the paired mylohyoid muscles form a muscular floor for the oral cavity of the mouth.