What happens to the windpipe, or trachea, before it reaches the lungs?

Question

What happens to the windpipe, or trachea, before it reaches the lungs? (A) It branches in two directions (B) It branches in three directions (C) It vibrates and creates sounds (D) It closes up so that no oxygen can escape

Tardigrade Admin · Accepted Answer

About half of 13 cm long trachea is inside the chest and the rest is in the neck. The lower end of the trachea divides into two bronchi (tubes) that carry air into the lungs. One bronchus goes to the left lung, the other to the right lung.

Q. What happens to the windpipe, or trachea, before it reaches the lungs?

It branches in two directions

It branches in three directions

It vibrates and creates sounds

It closes up so that no oxygen can escape

About half of $13 c m$ long trachea is inside the chest and the rest is in the neck. The lower end of the trachea divides into two bronchi (tubes) that carry air into the lungs. One bronchus goes to the left lung, the other to the right lung.

Q. What happens to the windpipe, or trachea, before it reaches the lungs?

It branches in two directions

It branches in three directions

It vibrates and creates sounds

It closes up so that no oxygen can escape

About half of 13cm long trachea is inside the chest and the rest is in the neck. The lower end of the trachea divides into two bronchi (tubes) that carry air into the lungs. One bronchus goes to the left lung, the other to the right lung.

About half of $13 c m$ long trachea is inside the chest and the rest is in the neck. The lower end of the trachea divides into two bronchi (tubes) that carry air into the lungs. One bronchus goes to the left lung, the other to the right lung.