Chapter 22, Problem 6CYU

Summary Introduction

To review:

1. The features of the trachea and the larger bronchi that trap as well as eliminate foreign entities from the inhaled air.

2. The structure that performs the same function within the alveoli.

Introduction:

Trachea and bronchi are parts of the respiratory structures starting from the nose and pharynx and ending in the alveoli sacs in the lungs. The inhaled air must be checked for the presence of foreign bodies to avoid any kind of pathogenic invasion. There is a highly branched network lined with tissues and cells that helps clearing the inhaled air of any foreign substances.