5 Respiratory System Exam Review | 75 Practice Questions
& Answers with Explanations | Portage Learning LockDown
Browser 2026
Introduction
Prepare with confidence for the BIOL 252 Human Anatomy & Physiology II with Lab Module 5
Respiratory System Exam using this comprehensive 75-question practice exam developed specifically
for Portage Learning students. Each multiple-choice question includes the correct answer and a detailed
explanation to reinforce essential concepts, strengthen critical thinking, and improve exam readiness for the
LockDown Browser assessment.
This Module 5 Respiratory System review provides comprehensive coverage of the structure and
function of the respiratory system, including the nasal cavity, pharynx, larynx, trachea, bronchi,
bronchioles, alveoli, lungs, pleura, pulmonary ventilation, mechanics of breathing, lung volumes and
capacities, external and internal respiration, gas exchange, oxygen and carbon dioxide transport,
hemoglobin function, oxygen-hemoglobin dissociation curve, ventilation-perfusion (V/Q) relationships,
pulmonary circulation, respiratory control centers, central and peripheral chemoreceptors, acid-base
balance, pulmonary function testing, spirometry, respiratory defense mechanisms, pulmonary surfactant,
respiratory homeostasis, and common respiratory disorders such as asthma, chronic bronchitis,
emphysema, chronic obstructive pulmonary disease (COPD), pneumonia, pulmonary fibrosis, pulmonary
edema, atelectasis, and pneumothorax. This study guide is ideal for self-assessment, reinforcing course
material, and preparing for success on the BIOL 252 Module 5 Portage Learning LockDown Browser
Exam in 2026