Module 5: Respiratory System
Section outline
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Fig1. Structures of the respiratory system. 2012. Image by Yoshina. CC-BY-3.0
Introduction: The respiratory system regulates pulmonary ventilation to keep blood levels of carbon dioxide, oxygen, and pH within normal limits. In this lab, you'll explore respiratory physiology through two main activities. First, you'll use a simulation to gather data on subjects exposed to hypercapnia (high carbon dioxide) and hypoxemia (low oxygen) to understand how factors like arterial pCO2, pO2, and blood pH affect ventilation. These measurements are essential for diagnosing respiratory, cardiovascular, and urinary conditions. In the second part of the lab, you'll observe and analyze changes in breathing patterns and learn how the respiratory system adjusts to maintain homeostasis.
Upon completion of this module, you will be able to:1. Define the terms pulmonary ventilation, exhalation, inhalation, vital capacity, tidal volume
2. Review the bicarbonate buffering system and the role of the respiratory system in maintaining normal
blood pH3. Define hypercapnia and hypoxemia
4. Discuss the role of arterial pCO2, arterial pO2, and blood pH in regulation of pulmonary ventilation
o How does pulmonary ventilation change in response to changes in blood pH, pCO2, and pO2?
o Why does pulmonary ventilation change in response to changes in blood pH, pCO2, and pO2?
To achieve these objectives:
- Read the Module 5 Introduction
- Complete the Module 5 Pre-Lab exercises and Module 6 Pre-Lab Quiz before the DUE DATE (see the Course Calendar).
- Complete the Module 5 Lab Exercises [in-class or online].
- Complete the Module 5 Post-Lab Quiz
**Please note: the final project should be submitted in this module or the next. Consider this when assigning activities and for grading time.
Module Pressbooks Resources and Activities
You will find the following resources and activities in this module at the Pressbooks website. Click on the links below to access or complete each item.
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