The Benefits of a Fortified Home. The safety of a home largely depends on the materials it is made of â high-quality materials can help protect you and your loved ones from whatever weather comes your way.
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.he 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.
1 The esophagus and the trachea are located at roughly the same place. 2  They are separated by the epiglottis-a tiny flap that protects the trachea when you swallow something! 3  Length and location-The trachea is made of a number of cartilaginous semi circular rings. 4  These prevent the trachea from collapsing.