Comprehensive Test Bank:
Cardiopulmonary Anatomy and
Physiology Essentials of Respiratory
Care Examination Questions with
Detailed Answers and Clinical
Rationales;Based on the 7th Edition
Textbook
Chapter 1: The Anatomy and Physiology of the Respiratory System
1. Which of the following are primary components of the upper
airway?
a) Nose, oral cavity, pharynx
b) Larynx, trachea, and bronchi
c) Nose, oral cavity, larynx, and trachea
d) Nose, oral cavity, pharynx, larynx, and trachea
Answer: a) Nose, oral cavity, pharynx
Rationale: The nose, oral cavity, and pharynx are the primary structures that
compose the upper airway. The trachea and bronchi, along with the
subglottic portion of the larynx, are located in the lower airway.
Understanding this division is essential for respiratory care because upper
,airway obstruction requires different management than lower airway
obstruction .
2. Which of the following is NOT a primary function of the nose?
a) Humidify inspired gas
b) Conduct gas and food to lower airway
c) Filter the inspired gas
d) Warm the inspired gas
Answer: b) Conduct gas and food to lower airway
Rationale: The nose serves as a passageway for gas, not food, to the lower
airway. The nose humidifies, warms, and filters inspired gas. Food is
conducted to the lower airway through the pharynx and esophagus, not the
nose. This distinction is clinically important when considering routes for
artificial airway placement and feeding tube insertion .
3. Which of the following are functions of the upper airway?
I. Conduction of gas to lower airway
II. Prevent foreign materials from entering lower airway
III. Warm, filter, and humidify inspired gas
IV. Aid in speech and smell
a) I, II, III, and IV
b) I, III, and IV only
c) I, II, and III only
d) I, II, and IV only
Answer: a) I, II, III, and IV
Rationale: The upper airway performs all of the listed functions: conduction of
gas to the lower airway, preventing foreign materials from entering,
warming/filtering/humidifying inspired gas, and aiding in speech and smell.
,Each of these functions is essential for normal respiratory physiology.
Impairment of any of these functions can lead to respiratory compromise and
requires appropriate assessment and intervention .
4. Which structures form the upper third of the nose?
a) Nasal bones
b) Frontal process of maxilla
c) Lateral nasal cartilage
d) Both a and b
Answer: d) Both a and b
Rationale: The upper third of the nose is composed of the nasal bones and
the frontal process of the maxilla. The lower two-thirds are composed of the
lateral nasal cartilage, lesser and greater alar cartilages, septal cartilage, and
fibrous fatty tissue. Understanding nasal anatomy is important in respiratory
care because nasal trauma, deformities, or swelling can significantly impact
airflow .
5. Which structures form the lower two-thirds of the nose?
a) Lateral nasal cartilage
b) Lesser and greater alar cartilages
c) Septal cartilage
d) All of the above
Answer: d) All of the above
Rationale: All of the listed structures compose the lower two-thirds of the
nose. This includes lateral nasal cartilage, lesser and greater alar cartilages,
septal cartilage, and fibrous fatty tissue. The cartilaginous structure of the
lower nose provides support while allowing flexibility, which is clinically
, relevant when assessing nasal patency, managing epistaxis, or performing
nasal intubation procedures .
6. What is the term for widening of the nostrils that can occur during
respiratory distress?
a) Grunting
b) Retractions
c) Alar collapse
d) Nasal flaring
Answer: d) Nasal flaring
Rationale: Nasal flaring is the term for the widening of the nostrils, especially
seen in respiratory distress in newborns and patients with increased work of
breathing. This is a compensatory mechanism to decrease airway resistance
and improve airflow. Recognizing nasal flaring is important in clinical
assessment as it indicates respiratory distress and the need for intervention .
7. Which of the following structures form the anterior nasal septum?
a) Septal cartilage
b) Vomer bone
c) Perpendicular plate of ethmoid bone
d) Nasal bones
Answer: a) Septal cartilage
Rationale: The anterior nasal septum is formed by the septal cartilage. The
posterior septum is formed by the vomer bone and the perpendicular plate of
the ethmoid bone. Understanding septal anatomy is important for
recognizing deviated septum, which can cause airflow obstruction, and for
proper placement of nasal airways .
Cardiopulmonary Anatomy and
Physiology Essentials of Respiratory
Care Examination Questions with
Detailed Answers and Clinical
Rationales;Based on the 7th Edition
Textbook
Chapter 1: The Anatomy and Physiology of the Respiratory System
1. Which of the following are primary components of the upper
airway?
a) Nose, oral cavity, pharynx
b) Larynx, trachea, and bronchi
c) Nose, oral cavity, larynx, and trachea
d) Nose, oral cavity, pharynx, larynx, and trachea
Answer: a) Nose, oral cavity, pharynx
Rationale: The nose, oral cavity, and pharynx are the primary structures that
compose the upper airway. The trachea and bronchi, along with the
subglottic portion of the larynx, are located in the lower airway.
Understanding this division is essential for respiratory care because upper
,airway obstruction requires different management than lower airway
obstruction .
2. Which of the following is NOT a primary function of the nose?
a) Humidify inspired gas
b) Conduct gas and food to lower airway
c) Filter the inspired gas
d) Warm the inspired gas
Answer: b) Conduct gas and food to lower airway
Rationale: The nose serves as a passageway for gas, not food, to the lower
airway. The nose humidifies, warms, and filters inspired gas. Food is
conducted to the lower airway through the pharynx and esophagus, not the
nose. This distinction is clinically important when considering routes for
artificial airway placement and feeding tube insertion .
3. Which of the following are functions of the upper airway?
I. Conduction of gas to lower airway
II. Prevent foreign materials from entering lower airway
III. Warm, filter, and humidify inspired gas
IV. Aid in speech and smell
a) I, II, III, and IV
b) I, III, and IV only
c) I, II, and III only
d) I, II, and IV only
Answer: a) I, II, III, and IV
Rationale: The upper airway performs all of the listed functions: conduction of
gas to the lower airway, preventing foreign materials from entering,
warming/filtering/humidifying inspired gas, and aiding in speech and smell.
,Each of these functions is essential for normal respiratory physiology.
Impairment of any of these functions can lead to respiratory compromise and
requires appropriate assessment and intervention .
4. Which structures form the upper third of the nose?
a) Nasal bones
b) Frontal process of maxilla
c) Lateral nasal cartilage
d) Both a and b
Answer: d) Both a and b
Rationale: The upper third of the nose is composed of the nasal bones and
the frontal process of the maxilla. The lower two-thirds are composed of the
lateral nasal cartilage, lesser and greater alar cartilages, septal cartilage, and
fibrous fatty tissue. Understanding nasal anatomy is important in respiratory
care because nasal trauma, deformities, or swelling can significantly impact
airflow .
5. Which structures form the lower two-thirds of the nose?
a) Lateral nasal cartilage
b) Lesser and greater alar cartilages
c) Septal cartilage
d) All of the above
Answer: d) All of the above
Rationale: All of the listed structures compose the lower two-thirds of the
nose. This includes lateral nasal cartilage, lesser and greater alar cartilages,
septal cartilage, and fibrous fatty tissue. The cartilaginous structure of the
lower nose provides support while allowing flexibility, which is clinically
, relevant when assessing nasal patency, managing epistaxis, or performing
nasal intubation procedures .
6. What is the term for widening of the nostrils that can occur during
respiratory distress?
a) Grunting
b) Retractions
c) Alar collapse
d) Nasal flaring
Answer: d) Nasal flaring
Rationale: Nasal flaring is the term for the widening of the nostrils, especially
seen in respiratory distress in newborns and patients with increased work of
breathing. This is a compensatory mechanism to decrease airway resistance
and improve airflow. Recognizing nasal flaring is important in clinical
assessment as it indicates respiratory distress and the need for intervention .
7. Which of the following structures form the anterior nasal septum?
a) Septal cartilage
b) Vomer bone
c) Perpendicular plate of ethmoid bone
d) Nasal bones
Answer: a) Septal cartilage
Rationale: The anterior nasal septum is formed by the septal cartilage. The
posterior septum is formed by the vomer bone and the perpendicular plate of
the ethmoid bone. Understanding septal anatomy is important for
recognizing deviated septum, which can cause airflow obstruction, and for
proper placement of nasal airways .
