What is the pharyngeal constructor?

The pharynx is muscles that reduce or narrow, the pharynx, which is part of the neck that stretches from the mouth and nasal cavity into the larynx. In fact, there are three pharyngal restrictions: an excellent pharyngal constructive muscle, a central pharyngeal muscle limiter and a lower pharyngeal muscle limiter.

Each of the above muscles is released when the pharynx gets food. When the pharynx descends, the muscles of the constructor draw from food and send it to the esophagus, where it is transported down in the gastrointestinal tract. Thus, the muscles of the pharyngeal constrictions are necessary for swallowing.

located in the back of the side of the face is superior muscle muscles, a quadrilateral consisting of four parts. Part of the pterygopharyngeal comes from the lower area of ​​the media pterygoid plate. Part of the buccopharyngeal arises from the prygomandibular ligament. Myolopharcaro part of Yngeal comes from the alveolar process of the jaw or lower jaw where the teeth are placed. The glosopharyngeal part begins from linguistic fibers.

ThisOn the specific inserts of the muscle inserts into two areas. One of them, the pharyngeal raphe, also serves as a place for insertion for the other muscles of the constrictor. The second area is the pharynx, which gives the pharynx of Raphe his attachment.

muscle muscles with superior is paler and thinner than the other two of the constrictions. One of them, the middle constructive muscles, is located below it in the upper area of ​​the neck. It is mainly based on the hyoid bone, the structure in the shape of a horseshoe located under the lower jaw. It is remarkable for its shape of the fan and is smaller than the subordinate muscles below it.

as the strongest of the three muscles of the pharyngeal restriction, the inferior disadvantages of the muscle is located further down the neck. It consists of two parts. The thyropharyngeal part comes from the thyroid cartilage; And part of Cricopharyngeal is thus named because it is based on Cricoid cartilage.

Muscles of the pharyngeal constrictor acquire innervation from FaryngeaLing plexus. This is a collection of nerve fibers that inherit the pharynx in addition to the larynx or voice box; and the floor or roof of the mouth. A specific nerve innervating the pharyngeal constrictions is the pharynx branch of the vagus nerve, which is the pharynic nerve and is also called the skull nerve X. In particular, the pharynx itself is found in the medium constructive muscle.