Trachealis muscle

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Trachealis muscle
Nerve Vagus nerve and upper thoracic spinal nerves
Actions Constricts trachea
Latin Musculus trachealis
TA A06.3.01.005
FMA 7466
Anatomical terms of muscle

The trachealis muscle is a smooth muscle that bridges the gap between the free ends of C-shaped cartilages at the posterior border of the trachea, adjacent to the esophagus.

The primary function of the trachealis muscle is to constrict the trachea, allowing air to be expelled with more force, e.g., during coughing.

See also[edit]


  • Histology a Text and Atlas/ Michael H. Ross, Wojciech Pawlina.,-5th ed., pg.617