BIO 152 A&P II Lab 7 Exam Respiratory & Digestive Systems
Actual Exam 2026/2027 – Complete 30 Questions with
Detailed Rationales | 100% Verified | Pass Guaranteed – A+
Graded
SECTION A: Respiratory System Anatomy – Upper & Lower Respiratory
Tract (Q1–Q6)
Q1: During a lab practical, students must categorize structures as upper or lower
respiratory tract. Which structure is NOT part of the upper respiratory tract?
A. Nasal cavity
B. Trachea [CORRECT]
C. Larynx
D. Pharynx
Correct Answer: B
Rationale: The upper respiratory tract consists of the nasal cavity, pharynx, and larynx;
the trachea marks the beginning of the lower respiratory tract. The other three
structures all belong to the upper tract.
Q2: A patient begins laughing while eating and suddenly begins choking on food that
entered the airway. Which structure's failure to fold over the laryngeal opening allowed
this to occur?
A. Soft palate
B. Uvula
C. Epiglottis [CORRECT]
D. Thyroid cartilage
Correct Answer: C
Rationale: The elastic epiglottis folds inferiorly over the glottis during swallowing to seal
the airway from food. The soft palate and uvula seal the nasopharynx, and the thyroid
cartilage provides framework without valve function.
Q3: On the respiratory system model in lab, students are asked to identify the
pharyngeal region that serves as a PASSAGEWAY FOR AIR ONLY. Which region is it?
A. Nasopharynx [CORRECT]
, B. Oropharynx
C. Laryngopharynx
D. Nasal cavity
Correct Answer: A
Rationale: The nasopharynx, located above the soft palate, conducts only air and
houses the pharyngeal tonsil. The oropharynx and laryngopharynx are shared by air and
food, and the nasal cavity is not part of the pharynx.
Q4: While examining the tracheal model, a student notices the trachea ends by
bifurcating into the primary bronchi at a highly sensitive ridge that triggers violent
coughing when touched. This structure is the:
A. Glottis
B. Nasal conchae
C. Vocal folds
D. Carina [CORRECT]
Correct Answer: D
Rationale: The carina is the last tracheal cartilage at the bifurcation point and is
extremely sensitive, provoking the cough reflex when stimulated. The glottis and vocal
folds are laryngeal structures, and the conchae are within the nasal cavity.
Q5: A lab partner asks which serous membrane adheres directly to the outer surface of
each lung. The correct response is:
A. Parietal pleura
B. Pericardium
C. Visceral pleura [CORRECT]
D. Peritoneum
Correct Answer: C
Rationale: The visceral pleura covers the lung surface itself, while the parietal pleura
lines the thoracic cavity wall. The pericardium and peritoneum are serous membranes
of the heart and abdominopelvic organs, respectively.
Q6: A microscope slide of the trachea is placed on the lab bench. Which epithelial type
should the student expect to identify lining this airway?
A. Pseudostratified ciliated columnar epithelium with goblet cells [CORRECT]
B. Simple squamous epithelium
C. Keratinized stratified squamous epithelium
D. Transitional epithelium
Correct Answer: A
Rationale: The respiratory mucosa of the trachea is pseudostratified ciliated columnar
epithelium with goblet cells for mucus production and debris transport. Simple
Actual Exam 2026/2027 – Complete 30 Questions with
Detailed Rationales | 100% Verified | Pass Guaranteed – A+
Graded
SECTION A: Respiratory System Anatomy – Upper & Lower Respiratory
Tract (Q1–Q6)
Q1: During a lab practical, students must categorize structures as upper or lower
respiratory tract. Which structure is NOT part of the upper respiratory tract?
A. Nasal cavity
B. Trachea [CORRECT]
C. Larynx
D. Pharynx
Correct Answer: B
Rationale: The upper respiratory tract consists of the nasal cavity, pharynx, and larynx;
the trachea marks the beginning of the lower respiratory tract. The other three
structures all belong to the upper tract.
Q2: A patient begins laughing while eating and suddenly begins choking on food that
entered the airway. Which structure's failure to fold over the laryngeal opening allowed
this to occur?
A. Soft palate
B. Uvula
C. Epiglottis [CORRECT]
D. Thyroid cartilage
Correct Answer: C
Rationale: The elastic epiglottis folds inferiorly over the glottis during swallowing to seal
the airway from food. The soft palate and uvula seal the nasopharynx, and the thyroid
cartilage provides framework without valve function.
Q3: On the respiratory system model in lab, students are asked to identify the
pharyngeal region that serves as a PASSAGEWAY FOR AIR ONLY. Which region is it?
A. Nasopharynx [CORRECT]
, B. Oropharynx
C. Laryngopharynx
D. Nasal cavity
Correct Answer: A
Rationale: The nasopharynx, located above the soft palate, conducts only air and
houses the pharyngeal tonsil. The oropharynx and laryngopharynx are shared by air and
food, and the nasal cavity is not part of the pharynx.
Q4: While examining the tracheal model, a student notices the trachea ends by
bifurcating into the primary bronchi at a highly sensitive ridge that triggers violent
coughing when touched. This structure is the:
A. Glottis
B. Nasal conchae
C. Vocal folds
D. Carina [CORRECT]
Correct Answer: D
Rationale: The carina is the last tracheal cartilage at the bifurcation point and is
extremely sensitive, provoking the cough reflex when stimulated. The glottis and vocal
folds are laryngeal structures, and the conchae are within the nasal cavity.
Q5: A lab partner asks which serous membrane adheres directly to the outer surface of
each lung. The correct response is:
A. Parietal pleura
B. Pericardium
C. Visceral pleura [CORRECT]
D. Peritoneum
Correct Answer: C
Rationale: The visceral pleura covers the lung surface itself, while the parietal pleura
lines the thoracic cavity wall. The pericardium and peritoneum are serous membranes
of the heart and abdominopelvic organs, respectively.
Q6: A microscope slide of the trachea is placed on the lab bench. Which epithelial type
should the student expect to identify lining this airway?
A. Pseudostratified ciliated columnar epithelium with goblet cells [CORRECT]
B. Simple squamous epithelium
C. Keratinized stratified squamous epithelium
D. Transitional epithelium
Correct Answer: A
Rationale: The respiratory mucosa of the trachea is pseudostratified ciliated columnar
epithelium with goblet cells for mucus production and debris transport. Simple
