BIOL 252 Module 2 | Human Anatomy & Physiology II
w/Lab Exam Q&A | Portage Learning
These are original practice questions written for study. They are not official BIOL 252,
Portage Learning, or university exam questions and are not copied from any
copyrighted question bank. They cover common BIOL 252 Module 2 | Human Anatomy
& Physiology II topics, including the respiratory system, lymphatic system, and
immunity, with NCLEX-style clinical framing.
Question 1:
Which structure is the primary passageway for air into the respiratory system?
A. Pharynx
B. Larynx
C. Trachea
D. Nasal cavity
Correct answer: D
Rationale: The nasal cavity is the primary passageway for air; it warms, moistens, and
filters incoming air.
Question 2:
Which structure prevents food from entering the trachea during swallowing?
A. Epiglottis
B. Uvula
C. Soft palate
D. Glottis
Correct answer: A
Rationale: The epiglottis covers the glottis during swallowing to prevent aspiration.
Question 3:
Which structure is known as the voice box?
A. Pharynx
B. Larynx
C. Trachea
D. Bronchus
,Correct answer: B
Rationale: The larynx contains the vocal cords and is responsible for voice production.
Question 4:
The trachea divides into which two structures?
A. Primary bronchi
B. Secondary bronchi
C. Bronchioles
D. Alveoli
Correct answer: A
Rationale: The trachea bifurcates into the right and left primary bronchi.
Question 5:
Where does gas exchange occur in the lungs?
A. Bronchi
B. Bronchioles
C. Alveoli
D. Trachea
Correct answer: C
Rationale: Alveoli are the site of gas exchange between air and blood.
Question 6:
Which muscle is the primary muscle of inspiration?
A. External intercostals
B. Diaphragm
C. Internal intercostals
D. Sternocleidomastoid
Correct answer: B
Rationale: The diaphragm is the primary muscle of inspiration, contracting to increase
thoracic volume.
Question 7:
Which lung has three lobes?
, A. Right lung
B. Left lung
C. Both lungs
D. Neither lung
Correct answer: A
Rationale: The right lung has three lobes (upper, middle, lower); the left has two.
Question 8:
Which pressure change causes air to enter the lungs during inspiration?
A. Intrapulmonary pressure increases
B. Intrapulmonary pressure decreases
C. Intrapleural pressure increases
D. Atmospheric pressure decreases
Correct answer: B
Rationale: During inspiration, intrapulmonary pressure drops below atmospheric
pressure, drawing air in.
Question 9:
Surfactant is produced by which cells?
A. Type I alveolar cells
B. Type II alveolar cells
C. Alveolar macrophages
D. Goblet cells
Correct answer: B
Rationale: Type II alveolar cells produce surfactant, which reduces surface tension and
prevents alveolar collapse.
Question 10:
A premature infant is at risk for respiratory distress syndrome because of:
A. Excess surfactant production
B. Lack of surfactant production
C. Excessive mucus production
D. Weak diaphragm
w/Lab Exam Q&A | Portage Learning
These are original practice questions written for study. They are not official BIOL 252,
Portage Learning, or university exam questions and are not copied from any
copyrighted question bank. They cover common BIOL 252 Module 2 | Human Anatomy
& Physiology II topics, including the respiratory system, lymphatic system, and
immunity, with NCLEX-style clinical framing.
Question 1:
Which structure is the primary passageway for air into the respiratory system?
A. Pharynx
B. Larynx
C. Trachea
D. Nasal cavity
Correct answer: D
Rationale: The nasal cavity is the primary passageway for air; it warms, moistens, and
filters incoming air.
Question 2:
Which structure prevents food from entering the trachea during swallowing?
A. Epiglottis
B. Uvula
C. Soft palate
D. Glottis
Correct answer: A
Rationale: The epiglottis covers the glottis during swallowing to prevent aspiration.
Question 3:
Which structure is known as the voice box?
A. Pharynx
B. Larynx
C. Trachea
D. Bronchus
,Correct answer: B
Rationale: The larynx contains the vocal cords and is responsible for voice production.
Question 4:
The trachea divides into which two structures?
A. Primary bronchi
B. Secondary bronchi
C. Bronchioles
D. Alveoli
Correct answer: A
Rationale: The trachea bifurcates into the right and left primary bronchi.
Question 5:
Where does gas exchange occur in the lungs?
A. Bronchi
B. Bronchioles
C. Alveoli
D. Trachea
Correct answer: C
Rationale: Alveoli are the site of gas exchange between air and blood.
Question 6:
Which muscle is the primary muscle of inspiration?
A. External intercostals
B. Diaphragm
C. Internal intercostals
D. Sternocleidomastoid
Correct answer: B
Rationale: The diaphragm is the primary muscle of inspiration, contracting to increase
thoracic volume.
Question 7:
Which lung has three lobes?
, A. Right lung
B. Left lung
C. Both lungs
D. Neither lung
Correct answer: A
Rationale: The right lung has three lobes (upper, middle, lower); the left has two.
Question 8:
Which pressure change causes air to enter the lungs during inspiration?
A. Intrapulmonary pressure increases
B. Intrapulmonary pressure decreases
C. Intrapleural pressure increases
D. Atmospheric pressure decreases
Correct answer: B
Rationale: During inspiration, intrapulmonary pressure drops below atmospheric
pressure, drawing air in.
Question 9:
Surfactant is produced by which cells?
A. Type I alveolar cells
B. Type II alveolar cells
C. Alveolar macrophages
D. Goblet cells
Correct answer: B
Rationale: Type II alveolar cells produce surfactant, which reduces surface tension and
prevents alveolar collapse.
Question 10:
A premature infant is at risk for respiratory distress syndrome because of:
A. Excess surfactant production
B. Lack of surfactant production
C. Excessive mucus production
D. Weak diaphragm
