An Introduction to Esophagus and Trachea
FAQs on Difference Between Esophagus and Trachea
1. What are the sphincters associated with the esophagus and trachea?
The esophagus has two sphincters—the upper esophageal sphincter (UES) and the lower esophageal sphincter (LES)—that regulate the passage of food. The trachea, however, does not possess any sphincters. The trachea is primarily a tubular structure that allows the passage of air between the throat and lungs, without any specialised muscular rings or valves regulating its airflow.
2. How do the esophagus and trachea handle foreign particles?
The esophagus does not have specific mechanisms to filter foreign particles, whereas the trachea is lined with mucus-producing cells and cilia that trap and remove particles from the inhaled air. While the esophagus relies on peristalsis to move swallowed particles, the trachea employs mucus production and ciliary movement to capture and remove foreign particles from the airway.
3. Can the esophagus and trachea branch out into other structures?
No, the esophagus does not branch out, whereas the trachea branches into two bronchi, which further divide into smaller bronchioles, leading to the lungs.It is a single muscular tube that extends from the throat to the stomach. In contrast, the trachea branches out into two main bronchi, known as the left and right bronchi, which further divide into smaller bronchioles. This branching pattern allows for the distribution of air to the lungs and facilitates the process of respiration.
