Ligament Thyrohyoid Lateral

The lateral thyrohyoid ligament (l.thyrohyoideum laterale) is one of the laryngeal ligaments that connects the thyroid gland to the hyoid bone. It is located on the lateral surface of the larynx and forms a dense layer that protects the larynx from damage and ensures its stability.

The lateral thyrohyoid ligament has the shape of a triangle, the base of which is located on the lateral surface of the thyroid gland, and the apex is on the hyoid bone. It consists of dense fibrous tissue that contains elastic fibers and blood vessels. The ligament is approximately 1 mm thick and may appear red on microscopic examination.

The function of the lateral thyrohyoid ligament is to provide stability to the larynx and protect it from injury. In addition, it is involved in the formation of the vocal cords and plays an important role in the formation of the voice.

Dysfunction of the lateral thyrohyoid ligament can lead to various diseases of the larynx, such as aphonia (loss of voice), laryngitis (inflammation of the larynx) and laryngotracheitis (inflammation of the trachea).

To diagnose diseases associated with the lateral thyrohyoid ligament, various research methods are used, such as computed tomography, magnetic resonance imaging and ultrasound. Treatment may include conservative methods such as physical therapy and medication, or surgery.

Thus, the lateral thyrohyoid ligament plays an important role in the functioning of the larynx and is an important element of its stability. Disruption of its function can lead to serious illnesses, so it is important to monitor its condition and, if necessary, consult a doctor for diagnosis and treatment.

The thyrohyoid ligament is attached by its lateral branch to the periosteal notch and forms two legs. The medial leg is located under the outer surface of the digastric muscle, and the lateral leg is between the anterior and posterior bellies of the aponeurosis of the sternocleidomastoid muscle and enters the fibrotendinous foramen. Both legs of the ligament go upward, attach to the superior horns of the thyroid cartilage and stretch its ventral surface. Function - holding the larynx and tongue in the sagittal plane. The attachments of the ligaments of the thyrohyoid and thyrohyoid lateral branches are divided into their two legs, medial and lateral, and directed in different directions. The thyroglossal ligaments are further divided into three sections: the lateral triangular, the central convex and the medial triangular. The lateral section fuses with the arch of the thyroid vertebra, the convexity of the sternal end and the adjacent area of ​​the thyroid body. The central section lies behind the eye, being separated from it by a thin ligament. The medial section connects the bodies of the hyoid bones. Functionally, the thyroid ligament is the connecting link between the middle and upper parts of the head.