Chondroglossus

Structure

The chondroglossus muscle is about 2 cm long. It arises from the medial side and base of the lesser horn of the hyoid bone. It passes directly upward. It then inserts by blending with the intrinsic muscles of the tongue, between the hyoglossus and genioglossus.

The chondroglossus muscle is sometimes described as a part of the hyoglossus. However, is separated from it by fibers of the genioglossus, which pass to the side of the pharynx.

Nerve supply

The chondroglossus muscle is supplied by the first lateral branch of the hypoglossal nerve. Some studies have found that it does not contain proprioceptive spindles to determine stretch.

Clinical significance

The chondroglossus muscle may be cut in the suprahyoid release surgery, which can be used during resection of the trachea.

Additional images

File:Gray186.png|Hyoid bone. Anterior surface. Enlarged.

References

References

1. (2002). "Morphological study of the human chondroglossus muscle in Japanese". Annals of Anatomy.
2. Sakamoto, Yujiro. (2017-05-01). "Configuration of the extrinsic muscles of the tongue and their spatial interrelationships". Surgical and Radiologic Anatomy.
3. Kubota, Kinziro. (1975). "Topological Distribution of Muscle Spindles in the Human Tongue and Its Significance in Proprioception". The Bulletin of Tokyo Medical and Dental University.
4. Kubota, Kinziro. (1975). "Topological Distribution of Muscle Spindles in the Human Tongue and Its Significance in Proprioception". The Bulletin of Tokyo Medical and Dental University.