Exam (elaborations)
N172: Respiratory Questions and Answers Grade A+
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N172: Respiratory Questions and Answers Grade A+
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1|Page | © copyright 2024/2025 | Grade A+N172: Respiratory Questions and
Answers Grade A+
How do chemoreceptors help to control respiration?
✓ they respond to changes in PaCO2 and pH
How do mechanical receptors help to control respiration?
✓ they respond to a variety of physiologic factors
✓ mechanoreceptors detect pressure
Chemoreceptors are groups of nerve cells that can distinguish between
_____________ and ________________
✓ hydrogen ions
✓ oxygen
How do chemoreceptors influence the autonomic nervous system's control of
ventilation?
✓ by correlating acid-base balance with gas exchange requirements
Where are chemoreceptors located?
Master01 | October, 2024/2025 | Latest update
, 1|Page | © copyright 2024/2025 | Grade A+
✓ centrally and peripherally in both the carotid arteries and arch of the
aorta
How are mechanical receptors stimulated?
✓ by irritants, muscle stretching, and alveolar wall distortion
Why does air flow into/out of the lungs?
✓ barometric pressure differences
What is the primary purpose of the respiratory system?
✓ gas exchange
What are the structures of the upper respiratory tract?
✓ nose, mouth, pharynx, epiglottis, larynx, trachea
What are the structures of the lower respiratory tract?
✓ bronchi, bronchioles, alveolar ducts, alveoli
What are the respiratory defense mechanisms?
Master01 | October, 2024/2025 | Latest update
, 1|Page | © copyright 2024/2025 | Grade A+
✓ filtration of air
✓ mucociliary clearance system
✓ cough reflex
✓ reflex bronchoconstriction
✓ alveolar macrophages
What is the normal ratio of inhalation:exhalation?
✓ 1:2
egophany
✓ have the patient say eeeeew
✓ if it sounds like A, this is abnormal
broncophony
✓ have the patient say 99
✓ If you can hear 99 clearly, this is abnormal
pectoriloquy
Master01 | October, 2024/2025 | Latest update
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