Biology: Concepts and Investigations
Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Chapter 31.2, Problem 4MC
Summary Introduction

To analyze:

The way moisture and surfactants help in the functioning of lungs.

Introduction:

A filter-like mechanism in the human respiratory system prevents harmful particles from getting into the lungs. As a result of the extensive branching that leads to the lungs, oxygen may enter and remove carbon dioxide from the body. The upper respiratory system is made up of the nasal cavity and throat, while the lower respiratory tract is made up of the lungs, which also include the larynx, trachea, bronchi, and alveoli.

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