NURS 231 Pathophys
Module 5 Exam
Questions and Complete
Solutions Graded A+
Denning [Date] [Course title]
, The respiratory system can be divided into what 2 structures? - Answer: Conducting airways and
respiratory tissues
What are the levels of branching? - Answer: Trachea, bronchi, bronchioles, alveoli
Where is the site of gas exchange? - Answer: Alveoli
What cells are in the alveolar epithelium? - Answer: Type 1 and II alveolar cells, macrophages
Describe what happens during inspiration and expiration: - Answer: During inspiration, air is drawn into
the lungs as the respiratory muscles expand the chest cavity. During expiration, air moves out of the
lungs as the chest muscles relax and the chest cavity becomes smaller.
What occurs with the diaphragm during inspiration and expiration? - Answer: The diaphragm is the
main muscle of inspiration. When the diaphragm contracts (inspiration), the chest expands. Upon
expiration, the chest cavity decreases and pressure inside increases.
What is lung compliance? What factors affect it? - Answer: Lung compliance is the ease with which
lungs can be inflated. Elastin, collagen, elastic recoil, and surface tension can affect lung compliance.
Lung Volumes - Answer: The amount of air exchanged from a single event during ventilation (measure
by a spirometer)
Tidal Volume (Vt) - Answer: normal volume of air inhaled or exhaled with each breath
Inspiratory Reserve Volume (IRV) - Answer: amount of air that can be forcefully inhaled after taking a
normal breath
Expiratory Reserve Volume (ERV) - Answer: Amount of air that can be forcefully exhaled after taking a
normal breath
Module 5 Exam
Questions and Complete
Solutions Graded A+
Denning [Date] [Course title]
, The respiratory system can be divided into what 2 structures? - Answer: Conducting airways and
respiratory tissues
What are the levels of branching? - Answer: Trachea, bronchi, bronchioles, alveoli
Where is the site of gas exchange? - Answer: Alveoli
What cells are in the alveolar epithelium? - Answer: Type 1 and II alveolar cells, macrophages
Describe what happens during inspiration and expiration: - Answer: During inspiration, air is drawn into
the lungs as the respiratory muscles expand the chest cavity. During expiration, air moves out of the
lungs as the chest muscles relax and the chest cavity becomes smaller.
What occurs with the diaphragm during inspiration and expiration? - Answer: The diaphragm is the
main muscle of inspiration. When the diaphragm contracts (inspiration), the chest expands. Upon
expiration, the chest cavity decreases and pressure inside increases.
What is lung compliance? What factors affect it? - Answer: Lung compliance is the ease with which
lungs can be inflated. Elastin, collagen, elastic recoil, and surface tension can affect lung compliance.
Lung Volumes - Answer: The amount of air exchanged from a single event during ventilation (measure
by a spirometer)
Tidal Volume (Vt) - Answer: normal volume of air inhaled or exhaled with each breath
Inspiratory Reserve Volume (IRV) - Answer: amount of air that can be forcefully inhaled after taking a
normal breath
Expiratory Reserve Volume (ERV) - Answer: Amount of air that can be forcefully exhaled after taking a
normal breath
