After entering a room of chemical fog, a 20-year-old male cannot ...

[c0205847]

After entering a room of chemical fog, a 20-year-old male cannot stop coughing. Which of the following structures are primarily responsible for his response?
 
  a. Upper respiratory tract mucosa
  b. Irritant receptors in the trachea and large airways
  c. Irritant receptors in the nostrils
  d. Upper respiratory nasal hairs and turbi-nates

Question 2

The nurse is describing the movement of blood into and out of the capillary beds of the lungs to the body organs and tissues. What term should the nurse use to describe this process?
 
  a. Perfusion
  b. Ventilation
  c. Diffusion
  d. Circulation

[janeli1]

Answer to Question 1

ANS: C
The irritant receptors in the nostrils are responsible for coughing, not those found in the upper respiratory tract mucosa or in the trachea. The cough is not related to stimulation of upper respir-atory nasal hairs or the turbinates.

Answer to Question 2

ANS: A
Perfusion is the movement of blood into and out of the capillary beds of the lungs to body or-gans and tissues. Ventilation is the movement of air into and out of the lungs. Diffusion is the movement of gases between air spaces in the lungs and the bloodstream. Circulation is the movement of blood throughout the bloodstream.

[c0205847]

TYSM

[AmberC1996]

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