Muscle, Tongue Longitudinal Deep (M. Longitudinalis Profundus, Jna)

Muscle, deep longitudinal tongue (M. Longitudinalis Profundus, Jna): structure and functions

The deep longitudinal tongue muscle (M. Longitudinalis Profundus, Jna) is one of the muscles of the tongue located in its deep layers. It runs along the tongue and belongs to the internal group of lingual muscles. In this article we will look at the anatomical structure and functions of this muscle.

Anatomical structure

The deep longitudinal tongue muscle begins on the gibb bone and extends to the tip of the tongue. It runs inside the tongue, between other muscles, and ends at the tip of the tongue. This muscle has a long and narrow shape, and its length can reach 10 cm.

Functions

The deep longitudinal tongue muscle is involved in the movement of the tongue and its positioning. It helps lift and shape the tongue during various speech sounds. In addition, it is involved in various functions related to digestion, such as moving food into the oral cavity and grinding it.

Conclusion

The deep longitudinal tongue muscle plays an important role in the movement of the tongue and its positioning. Its anatomical structure and functions are key to understanding how the tongue works in general. Understanding the anatomy and function of this muscle can help in the diagnosis and treatment of various language-related speech and digestive disorders.