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When you breathe in what happens to the trachea?

1.the trachea constricts
2.the trachea widens and lengthens
3.the trachea widens and shortens
4.the trachea narrows and lenghtens

User Milanio
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2 Answers

8 votes
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
User Drchuck
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3 votes

Answer:

2. the trachea widens and lengthens.

Step-by-step 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.

User Cacoon
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