Correct spelling for musculus transversalis nasi [Infographic]

MUSCULUS TRANSVERSALIS NASI Meaning and Definition

The term "musculus transversalis nasi" refers to a small muscle located in the nose, specifically in the region known as the ala. The Latin word "musculus" translates to "muscle," while "transversalis" can be understood as "transverse" or "horizontal," and "nasi" means "of the nose." This muscle is present in humans and some other mammals.

The musculus transversalis nasi is responsible for the movement and control of the nostrils. It is part of a group of muscles within the nose that work together to widen or narrow the nostrils, thereby regulating airflow during breathing. In moments of increased inspiration or during certain physical activities such as exercise, this muscle contracts to dilate the nostrils, allowing for improved air intake.

The musculus transversalis nasi is innervated by the buccal branch of the facial nerve, specifically the facial nerve's zygomatic branch. Its action is coordinated with other muscles in the nose, including the pair of musculi dilator naris. These muscles work together to modulate nasal airflow, optimizing oxygenation during various respiratory conditions.

Studies on this muscle are limited, given its small size and proximity to other structures within the nose. However, understanding the musculus transversalis nasi's function is integral to comprehending the physiological mechanisms involved in nasal breathing and airflow regulation.
M. compressor narium.

A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.