Structure
The posterior wall of the trachea is flat and contains fibromuscular tissue, including the involuntary trachealis muscle. It is devoid of tracheal cartilages, which occupy the anterolateral aspects of the tracheal wall. The trachealis muscle is composed of smooth muscle and attaches between the ends of the tracheal cartilages.
Related parts of the anatomy
Key Features/Anatomical Relations
The membranous portion is lined posteriorly by the trachealis muscle. These two components sit in front of the esophagus.
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Trachea
Tracheal bronchus (TB) is a bronchial branching anomaly that consists of an abnormal bronchus, which supplies the right upper lobe and arises directly from the lateral wall of the trachea above the carina.
