In a histological cross-section of the trachea, the trachealis muscle is located:
Show answer and explanation
Correct answer: Posteriorly, beside the esophagus
The trachealis muscle occupies the posterior 'gap' of the tracheal rings. This placement allows the esophagus, which lies immediately posterior, to expand slightly into the tracheal space during swallowing.
Keep practicing
More Trachea Histology questions
- Which component of the tracheal wall provides the 'elastic recoil' necessary for respiration?
- Which type of epithelium lines the luminal surface of the trachea?
- What is the primary function of the goblet cells found in the tracheal epithelium?
- The C-shaped rings of the trachea are composed of which type of cartilage?
- Which structure connects the two open ends of the C-shaped tracheal cartilages posteriorly?
- In tracheal histology, the 'basement membrane' is notably thick compared to other organs. This is especially prominent in: