Labiobrachial ligaments

Ligaments of the labiobrachial line

_Connect the upper lip to the anterior surface of the humerus and ensure its movement when the tongue protrudes._

The anterior and posterior lips are attached to the lower jaw by the labiobrachial and hyoid ligaments. Each corner of the lower jaw is surrounded by connective tissue formations, in front - by the temporomandibular and less firmly - by the facial-masticatory joints, on the side - by the sternocleidomastoid and cervical vertebrae. At the back is the nuchal ligament, sewn into the cervical vertebrae. In addition, the lower jaw is immersed in a deeper connective tissue base, directed from below to the symphysis. At this base are the fatty lump of Bisha and the main fascia of the neck. The lower part of the edge of the jaw has a wide opening into which the mental foramen exits from the external maxillary artery. Two thin, sharp petrosal muscles extend from the inner surface of the mandibular margin: the superior orbital and inferior orbital muscles, which, when contracted, raise the lower eyelids. The superficial and deep transverse necks are located to the inner surface of the lower jaw at the level of the anterior and posterior borders of the body. The line of entry into the oral fissure is located below the sublingual openings. The movement of food into the oral cavity is prevented by the tonsils and tongue. The movements of the latter are possible due to the fact that the vagina of the tongue is a cone-shaped tubular space; it consists of a fibrous-muscular sheath and the vaginal mucosa. The fiber bundles run in the longitudinal direction. We