Temporalis muscle

The temporalis muscle is a fan-shaped masticatory muscle that originates from the temporal fossa on the surface of the parietal bone and the squama of the temporal bone. It attaches to the lower jaw and helps elevate the lower jaw.

The temporalis muscle plays an important role in chewing and swallowing. It is also involved in the formation of speech and articulation. When the temporalis muscle contracts, it raises the lower jaw and helps close the mouth, allowing a person to speak and chew food.

In addition, this muscle is involved in maintaining balance and coordinating head movements. When it contracts, it moves the neck and head, which helps maintain balance and stability.

The function of the temporalis muscle can be impaired by various diseases and injuries. For example, in Bell's palsy, when the nerve supplying the muscle is damaged, it can become weak or paralyzed. This can lead to problems with chewing, swallowing and speaking.

Also, if the temporal muscle is damaged, headaches and discomfort in the neck and jaw may occur. Therefore, if you are experiencing problems with this muscle, see your doctor for diagnosis and treatment.

Temporalis muscle. Temporalis The temporal muscle or temporalis is a chewing muscle, fan-shaped, located on the side of the maxillofacial area of ​​the mouth, behind the temporal foramen, between the zygomatic arch and the eardrum. In terms of neuroanatomy, it should be noted that these two muscles share the foramen of the greater palatine nerve.

General description. The structure and location of the muscles of the temporal bones of the vestibule of the mouth coincides with the structure of the sac of the same name in the same cavity. It starts from the two condyles of the temporal opening of the temporal jaw under the name tuber maxillarium. One part of this muscle is attached by three tendons to the knee of the temporal arch, and the other to the lower edge of the frontal squama, forming the posterior corner of the zygomatic arch. In relation to the anterior part of the buccal region, it is located downward and posteriorly and, resting against the periosteum in a circular bridge in the upper part of the cheek, passes onto the cheek bone, running towards the upper tips of the teeth.

It is located in the direction of the maxillary canal (maxillary window), extending into a triangular fossa in the middle part of the temporal lobes. In front, it joins slightly with the buccal artery, located more medially, and mixes with the cartilage of the vestibule, which surrounds it superiorly. Next, the lower abdomen will join the hypoglossal canal.

Function. The main function of the temporalis muscle is to tilt the mandible longitudinally and close the lips. The muscle bundle that lifts the lower jaw and brings it closer to the upper is an auxiliary function of the jaw. The temporalis muscle opens the lower half of the mouth when chewing and is involved in the loud sound of the voice. In addition, these lips lift the upper part of the jaw with ground teeth back and give it the necessary force when biting. This occurs due to contraction of the muscle bundle of the muscle. When swallowing, we notice the synchronous movement of this muscle, created by the force near the orbit. Generally,