A patient is diagnosed with a middle ear infection. The nurse ...

[leilurhhh]

A patient is diagnosed with a middle ear infection. The nurse realizes that which portion of the patient's airway is affected?
 
  1. nasopharynx
  2. oropharynx
  3. laryngopharynx
  4. nares

Question 2

The nurse observes a patient breathing through an open mouth. Which function is being bypassed by mouth breathing?
 
  1. cooling the air
  2. neutralizing the air
  3. filtering the air
  4. separating the air

[quynhmickitran]

Answer to Question 1

Correct Answer: 1
The eustachian tubes also open into the nasopharynx, and connect it with the middle ear. This is the opening from the nasal passages to the back of the throat. The oropharynx is the mouth-to-throat location. Nares are the openings that enter the nose. The laryngopharynx is the area from the back of the throat to the deeper part of the throat.

Answer to Question 2

Correct Answer: 3
The nasal hairs filter the air as it enters the nares. The rest of the cavity is lined with mucous membranes that contain olfactory neurons and goblet cells that secrete thick mucus. The mucus not only traps dust and bacteria but also contains lysozyme, an enzyme that destroys bacteria as they enter the nose. As mucus and debris accumulate, mucosal ciliated cells move it toward the pharynx, where it is swallowed. The mucosa is highly vascular, warming air that moves across its surface. Cooling of the air would not be happening with nasal breathing. The air would not be neutralized or separated with nasal breathing, so it is not being bypassed with mouth breathing.