Answer :
Answer:
2. the trachea widens and lengthens.
Explanation:
Moist, smooth tissue called mucosa lines the inside of the trachea. The trachea widens and lengthens slightly with each breath in, returning to its resting size with each breath out.
2
if your trachea is constricted or narrowing that is a sign of issue. normally it is very flexible and moves accordingly to what you’re doing
if your trachea is constricted or narrowing that is a sign of issue. normally it is very flexible and moves accordingly to what you’re doing