BIOL252 Human Anatomy & Physiology II with Lab
Module 5 Exam Actual Exam 2026/2027 – Complete
Exam-Style Questions with Detailed Rationales | 100%
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Section 1: Anatomy of the Respiratory System (Upper & Lower Tract)
Q1: During a physical exam, a physician shines a light into a patient's nose. What is the primary
function of the nasal conchae (turbinates) that these light beams are highlighting?
A. To increase the surface area for olfaction only.
B. To trap dust and moisten and warm the incoming air.
C. To produce vocal sounds through resonance.
D. To drain mucus directly into the lungs.
B. To trap dust and moisten and warm the incoming air. [CORRECT]
Correct Answer: B
Rationale: This choice is correct because the conchae create turbulence in the airflow, which
helps trap particles, while the highly vascularized mucosa warms and humidifies the air before it
reaches the lungs.
Q2: A piece of popcorn accidentally enters a child's nose but is found in the throat after they
cough. Which pharyngeal region acts as the common passageway for both air (from the nasal
cavity) and food (from the mouth)?
A. Nasopharynx
B. Oropharynx
C. Laryngopharynx
D. Trachea
B. Oropharynx [CORRECT]
Correct Answer: B
Rationale: The oropharynx is the correct answer because it lies posterior to the oral cavity and is
the specific region where the respiratory and digestive pathways intersect.
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Q3: A patient is having difficulty swallowing (dysphagia) and a sensation of a lump in the throat.
Which laryngeal cartilage, made of hyaline cartilage, feels like a hard prominence on the anterior
neck and is commonly known as the "Adam's apple"?
A. Cricoid cartilage
B. Arytenoid cartilage
C. Thyroid cartilage
D. Epiglottis
C. Thyroid cartilage [CORRECT]
Correct Answer: C
Rationale: This choice is correct because the thyroid cartilage is the largest laryngeal cartilage
and forms the "Adam's apple," protecting the anterior portion of the larynx.
Q4: During the Heimlich maneuver, increased abdominal pressure forces air out of the lungs to
expel an object. Which laryngeal structure acts as the "trap door" to prevent the food bolus from
entering the lower respiratory tract?
A. Vocal cords (true folds)
B. Epiglottis
C. Vestibular folds (false folds)
D. Arytenoid cartilages
B. Epiglottis [CORRECT]
Correct Answer: B
Rationale: The epiglottis is the correct answer because it is the elastic cartilage flap that covers
the glottis during swallowing to direct food into the esophagus and away from the trachea.
Q5: An ENT specialist examines a patient's vocal cords. What is the collective name for the slit-
like opening between the vocal folds that air passes through to produce sound?
A. Rima glottidis
B. Epiglottis
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C. Carina
D. Alveolar duct
A. Rima glottidis [CORRECT]
Correct Answer: A
Rationale: This matches the anatomical term because the rima glottidis is the space between the
true vocal cords, which serves as the narrowest part of the adult airway.
Q6: A surgeon performing a bronchoscopy inserts the scope into the trachea. Why are the
tracheal rings C-shaped instead of complete O-rings?
A. To allow the esophagus to expand and expand when food is swallowed.
B. To prevent the trachea from collapsing during expiration.
C. To allow the aorta to compress the trachea.
D. To make the trachea more flexible.
A. To allow the esophagus to expand and expand when food is swallowed. [CORRECT]
Correct Answer: A
Rationale: This choice is correct because the open part of the C-ring faces posteriorly toward the
esophagus, permitting the esophagus to expand when a food bolus passes through it.
Q7: Air enters the right lung but is blocked from reaching a specific lower lobe. The blockage is
likely in a secondary (lobar) bronchus. How many secondary bronchi are typically found in the
right lung?
A. Two
B. Three
C. Five
D. One
B. Three [CORRECT]
Correct Answer: B
Rationale: This is correct because the right lung has three lobes (superior, middle, inferior), and
therefore receives three secondary (lobar) bronchi.