9: Respiratory System — Read — Invisible Network

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Learning Objectives

After completing this section, you should know:

why animals need energy and how they make it in cells
why animals require oxygen and need to get rid of carbon dioxide
what the term gas exchange means
the structure of alveoli and how oxygen and carbon dioxide pass across their walls
how oxygen and carbon dioxide are carried in the blood
the route air takes in the respiratory system (i.e. the nose, pharynx, larynx, trachea, bronchus, bronchioles, alveoli)
the movements of the ribs and diaphragm to bring about inspiration
what tidal volume, minute volume and vital capacity are
how the rate of breathing is controlled and how this helps regulate the acid-base balance of the blood

9.1: Overview
9.2: Diffusion and Transportation of Oxygen
9.3: Diffusion and Transportation of Carbon Dioxide
9.4: The Air Passages
9.5: The Lungs and Pleural Cavities
9.6: Breathing
The process of breathing moves air in and out of the lungs. Sometimes this process is called respiration but it is important not to confuse it with the chemical process, cellular respiration, that takes place in the mitochondria of cells. Breathing is brought about by the movement of the diaphragm and the ribs.
9.7: Summary
9.8: Worksheet
9.9: Respiratory System Worksheet
9.10: Respiration Worksheet Answers
9.11: Test Yourself
9.12: Websites

Thumbnail: Lungs diagram with internal details. (CC BY 2.5; Patrick J. Lynch, medical illustrator).

This page titled 9: Respiratory System was last modified on Thu, 15 Sep 2022 20:02:11 GMT and is shared under a CC BY-SA 3.0 license and was authored, remixed, and/or curated by Ruth Lawson via source content that was edited to the style and standards of the LibreTexts platform.

Contents

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Learning Objectives