There is a link between trachea and oesophagus at throat region. But w

1.	There is a link between trachea and oesophagus at throat region. But why the oxygen not enterin oesophagus and food particles not enter in the trachea?
Answer» LINING the trachea are mucosal membranes comprised of epithelial cells, mucus-secreting goblet cells, and hair-like projections CALLED CILIA that move foreign particles up and out of the airway. However, if a foreign object, LIQUID, or irritant (like smoke) enters the trachea, the muscles can contract VIOLENTLY, causing coughing to expel the substance.

There is a link between trachea and oesophagus at throat region. But why the oxygen not enterin oesophagus and food particles not enter in the trachea?

Answer»

LINING the trachea are mucosal membranes comprised of epithelial cells, mucus-secreting goblet cells, and hair-like projections CALLED CILIA that move foreign particles up and out of the airway.

However, if a foreign object, LIQUID, or irritant (like smoke) enters the trachea, the muscles can contract VIOLENTLY, causing coughing to expel the substance.

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There is a link between trachea and oesophagus at throat region. But why the oxygen not enterin oesophagus and food particles not enter in the trachea?​

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There is a link between trachea and oesophagus at throat region. But why the oxygen not enterin oesophagus and food particles not enter in the trachea?