PORTAGE BIOD 151 MODULE 2 EXAM QUESTIONS & ANSWERS 2026-2027 | COMPLETE STUDY … EXAM
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
Portage BIOD 151 Module 2 Exam
Questions & Answers 2026-2027 |
Complete Study Guide | Verified
Practice Test (Rationales)
Verified Answers Exam Ready With Rationales
118 QUESTIONS
DOCUMENT OVERVIEW
This document contains 118 verified questions with correct answers and detailed rationales, focusing on
respiratory system anatomy and physiology. It serves as a comprehensive study guide, ensuring a thorough
understanding of key concepts essential for academic success. The material is ideal for exam preparation,
course review, and certification readiness.
CONTENTS
01 • Respiratory Anatomy 02 • Pleura and Functions 03 • Pharynx and Larynx
04 • Bronchial Structure 05 • Alveolar Function 06 • Gas Exchange Mechanisms
07 • Ventilation and Breathing 08 • Respiratory Volumes 09 • Respiratory Pathologies
E XA M Q U EST I O N S
Q1 QUESTION 1 OF 118
Page 1
,True or false.
The lungs are symmetrical.
CORRECT ANSWER
False
RATIONALE
The lungs exhibit asymmetry due to anatomical differences, with the right lung having three lobes and the left lung having two lobes to
accommodate the heart's position. This structural variation is essential for optimal respiratory function and spatial arrangement within the
thoracic cavity.
Q2 QUESTION 2 OF 118
Hilum
CORRECT ANSWER
the "root" of the lung
RATIONALE
The hilum serves as the anatomical site where bronchial and vascular structures enter and exit the lungs, anchoring them to the
mediastinum. This "root" configuration is critical for the functional integration of pulmonary circulation and ventilation.
Q3 QUESTION 3 OF 118
healthy lung tissue is what color
CORRECT ANSWER
peachy/pink color
RATIONALE
Healthy lung tissue appears peachy or pink due to the presence of adequate blood flow and oxygenation, reflecting its vascularity and
functional capacity. This coloration indicates optimal gas exchange and respiratory function, essential for pulmonary health.
Q4 QUESTION 4 OF 118
pleurae
CORRECT ANSWER
membranes that surround the lungs and the cavity around the lungs
Page 2
, RATIONALE
Pleurae are serous membranes that facilitate lung movement within the thoracic cavity by reducing friction during respiration, while also
providing a protective barrier against infection. Their dual-layer structure, comprising the visceral and parietal pleura, enables efficient
lung expansion and contraction.
Q5 QUESTION 5 OF 118
visceral pleura
CORRECT ANSWER
layer of pleura that faces/covers the lung
RATIONALE
The visceral pleura is a serous membrane that directly adheres to the lung surface, providing protection and facilitating smooth movement
during respiration. This anatomical relationship is critical for maintaining pleural pressure and lung expansion.
Q6 QUESTION 6 OF 118
parietal pleura
CORRECT ANSWER
outer layer of pleura lying closer to the ribs and chest wall that covers the surface around the lungs
RATIONALE
The parietal pleura serves as the outermost layer of pleural membranes, providing a protective covering for the thoracic cavity while
facilitating the movement of the lungs during respiration. Its attachment to the chest wall and diaphragm ensures that changes in thoracic
pressure effectively promote airflow into and out of the lungs.
Q7 QUESTION 7 OF 118
pleural space/cavity
CORRECT ANSWER
Space between the visceral and parietal pleural membranes (small)
typically empty but has a small amount of fluid that allows for frictionless breathing
when diseased, this space can fill with air or fluid
RATIONALE
The pleural space is a potential cavity that allows for lung expansion and contraction during respiration, filled with a minimal amount of
pleural fluid to reduce friction. Pathological conditions can lead to abnormal fluid or air accumulation, disrupting normal respiratory
mechanics and gas exchange.
Page 3
, Q8 QUESTION 8 OF 118
structures in the respiratory system
CORRECT ANSWER
nasal cavity, pharynx, larynx, trachea, bronchi, lungs
RATIONALE
The respiratory system comprises a series of interconnected structures that facilitate gas exchange, beginning with the nasal cavity where
air is filtered and warmed, progressing through the pharynx and larynx for voice production, and continuing down the trachea and bronchi
to the lungs, where oxygen and carbon dioxide exchange occurs. This anatomical pathway is critical for maintaining effective respiration
and homeostasis.
Q9 QUESTION 9 OF 118
what happens to air as it goes from outside the body to the lungs
CORRECT ANSWER
air is filtered so it has no debris
air is warmed to body temp
air is humidified and becomes saturated with water
RATIONALE
As air travels through the respiratory tract, it undergoes filtration via nasal mucosa and cilia, increases in temperature to match body heat,
and is humidified to prevent airway irritation, ensuring that the air reaching the alveoli is clean, warm, and saturated with moisture for
optimal gas exchange. This process highlights the body's mechanisms for maintaining effective respiratory function and protecting lung
tissue.
Q10 QUESTION 10 OF 118
nasal cavities aka fossae are composed of what
CORRECT ANSWER
none and cartilage
RATIONALE
Nasal cavities are lined with mucosa but primarily consist of bone and cartilage, providing structural support and facilitating airflow.
Understanding the anatomy of the nasal fossae is crucial for grasping respiratory function and related pathologies.
Q11 QUESTION 11 OF 118
Page 4
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
Portage BIOD 151 Module 2 Exam
Questions & Answers 2026-2027 |
Complete Study Guide | Verified
Practice Test (Rationales)
Verified Answers Exam Ready With Rationales
118 QUESTIONS
DOCUMENT OVERVIEW
This document contains 118 verified questions with correct answers and detailed rationales, focusing on
respiratory system anatomy and physiology. It serves as a comprehensive study guide, ensuring a thorough
understanding of key concepts essential for academic success. The material is ideal for exam preparation,
course review, and certification readiness.
CONTENTS
01 • Respiratory Anatomy 02 • Pleura and Functions 03 • Pharynx and Larynx
04 • Bronchial Structure 05 • Alveolar Function 06 • Gas Exchange Mechanisms
07 • Ventilation and Breathing 08 • Respiratory Volumes 09 • Respiratory Pathologies
E XA M Q U EST I O N S
Q1 QUESTION 1 OF 118
Page 1
,True or false.
The lungs are symmetrical.
CORRECT ANSWER
False
RATIONALE
The lungs exhibit asymmetry due to anatomical differences, with the right lung having three lobes and the left lung having two lobes to
accommodate the heart's position. This structural variation is essential for optimal respiratory function and spatial arrangement within the
thoracic cavity.
Q2 QUESTION 2 OF 118
Hilum
CORRECT ANSWER
the "root" of the lung
RATIONALE
The hilum serves as the anatomical site where bronchial and vascular structures enter and exit the lungs, anchoring them to the
mediastinum. This "root" configuration is critical for the functional integration of pulmonary circulation and ventilation.
Q3 QUESTION 3 OF 118
healthy lung tissue is what color
CORRECT ANSWER
peachy/pink color
RATIONALE
Healthy lung tissue appears peachy or pink due to the presence of adequate blood flow and oxygenation, reflecting its vascularity and
functional capacity. This coloration indicates optimal gas exchange and respiratory function, essential for pulmonary health.
Q4 QUESTION 4 OF 118
pleurae
CORRECT ANSWER
membranes that surround the lungs and the cavity around the lungs
Page 2
, RATIONALE
Pleurae are serous membranes that facilitate lung movement within the thoracic cavity by reducing friction during respiration, while also
providing a protective barrier against infection. Their dual-layer structure, comprising the visceral and parietal pleura, enables efficient
lung expansion and contraction.
Q5 QUESTION 5 OF 118
visceral pleura
CORRECT ANSWER
layer of pleura that faces/covers the lung
RATIONALE
The visceral pleura is a serous membrane that directly adheres to the lung surface, providing protection and facilitating smooth movement
during respiration. This anatomical relationship is critical for maintaining pleural pressure and lung expansion.
Q6 QUESTION 6 OF 118
parietal pleura
CORRECT ANSWER
outer layer of pleura lying closer to the ribs and chest wall that covers the surface around the lungs
RATIONALE
The parietal pleura serves as the outermost layer of pleural membranes, providing a protective covering for the thoracic cavity while
facilitating the movement of the lungs during respiration. Its attachment to the chest wall and diaphragm ensures that changes in thoracic
pressure effectively promote airflow into and out of the lungs.
Q7 QUESTION 7 OF 118
pleural space/cavity
CORRECT ANSWER
Space between the visceral and parietal pleural membranes (small)
typically empty but has a small amount of fluid that allows for frictionless breathing
when diseased, this space can fill with air or fluid
RATIONALE
The pleural space is a potential cavity that allows for lung expansion and contraction during respiration, filled with a minimal amount of
pleural fluid to reduce friction. Pathological conditions can lead to abnormal fluid or air accumulation, disrupting normal respiratory
mechanics and gas exchange.
Page 3
, Q8 QUESTION 8 OF 118
structures in the respiratory system
CORRECT ANSWER
nasal cavity, pharynx, larynx, trachea, bronchi, lungs
RATIONALE
The respiratory system comprises a series of interconnected structures that facilitate gas exchange, beginning with the nasal cavity where
air is filtered and warmed, progressing through the pharynx and larynx for voice production, and continuing down the trachea and bronchi
to the lungs, where oxygen and carbon dioxide exchange occurs. This anatomical pathway is critical for maintaining effective respiration
and homeostasis.
Q9 QUESTION 9 OF 118
what happens to air as it goes from outside the body to the lungs
CORRECT ANSWER
air is filtered so it has no debris
air is warmed to body temp
air is humidified and becomes saturated with water
RATIONALE
As air travels through the respiratory tract, it undergoes filtration via nasal mucosa and cilia, increases in temperature to match body heat,
and is humidified to prevent airway irritation, ensuring that the air reaching the alveoli is clean, warm, and saturated with moisture for
optimal gas exchange. This process highlights the body's mechanisms for maintaining effective respiratory function and protecting lung
tissue.
Q10 QUESTION 10 OF 118
nasal cavities aka fossae are composed of what
CORRECT ANSWER
none and cartilage
RATIONALE
Nasal cavities are lined with mucosa but primarily consist of bone and cartilage, providing structural support and facilitating airflow.
Understanding the anatomy of the nasal fossae is crucial for grasping respiratory function and related pathologies.
Q11 QUESTION 11 OF 118
Page 4
