Trachealis muscle

Definition

The trachealis muscle is a band of smooth muscle that connects the ends of the C-shaped cartilages at the back of the trachea, allowing for flexibility and constriction during breathing. It plays a key role in adjusting airflow resistance and maintaining an open airway.

Related terms

Trachea:

The windpipe that connects the larynx to the bronchi, providing a passage for air to enter and exit the lungs.

Bronchi:

The main passageways that direct air into each lung from the trachea, branching into smaller tubes called bronchioles.

Smooth Muscle:

A type of involuntary muscle found in various internal organs including in the walls of airways, controlling functions such as constriction and dilation without conscious effort