Question

The tube into which the trachea divide to go into each lung is called what?

Answer 1

The trachea divides into two bronchi when it enters the lungs.

Explanation:

When the trachea reaches the lungs, it splits into two tubes: the right bronchus and the left bronchus. Each of these enters a lung.

The trachea and bronchi share many structural components, including smooth muscle, cartilage, and cilia. However, the bronchi are only about `1.2` centimetres in diameter, whereas the trachea is approximately `1.8`.

The air passes from the trachea into the bronchi. Then, the bronchi subdivide into a massive network of smaller airways called bronchioles, which carry the blood to the alveoli, where gas exchange occurs.