The main airway that is given its rigid structure by the cartilaginous rings that surround it is called the . Why is it important for this structure to not be soft and super flexible?

The trachea is a rigid tube about 4.5 inches long and 1 inch wide. ... The bronchi also contain C-shaped cartilage rings like the trachea. Deeper in the lungs, each bronchus divides into secondary and tertiary bronchi, which continue to branch to smaller airways called the bronchioles.

Explanation:

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

explanation: