Inferior pharyngeal constrictor muscle

Pars cricopharyngea ( musculi constrictoris pharyngis inferioris ): - ( Outer edge of) the cricoid cartilage

Glossopharyngeal nerve ( cranial nerve IX) Vagus nerve ( cranial nerve X)

The Musculus inferior pharyngeal constrictor (Latin for "lower Rachenschnürer ", from the Latin musculus " muscle " and constringere " pull together ", " to tie up ", from the Greek pharynx " throat " and from the Latin inferior " lower ", " lower altitude " ), which under the name musculus cricopharyngeus (from Greek cricoideus " annular" ) is known to German lower pharynx, a fan-shaped, striated muscle (skeletal muscle), which forms the muscular part of the throat along with the musculi constrictores pharyngis superior and medius. He is trained very prominent, especially in the dorsal and lateral area.

At the posterior pharyngeal wall, the paired parts of the muscle are connected to each other through the raphe of the pharynx, which also serves as the Schlundschnürern approach.

The muscle can be further subdivided into:

• Pars thyropharyngea
• Pars cricopharyngea ( with pars obliqua and pars fundiformis that form the Killian triangle. Here the Zenker's diverticulum arise )

Function

The inferior pharyngeal constrictor muscle constricts the laryngeal portion of the pharynx ( pars laryngeal pharynx ) and shifts so that during swallowing the food bolus toward the esophagus before.

Diseases

Hypertrophy of the musculus cricopharyngeus can lead to dysphagia.

Swell

• The Human Musculature in tables ( Dr. H. Jastrow ), University of Mainz ( www. uni- mainz.de )

• Skeletal muscle of the neck
• Skeletal muscle of the head