The nursing instructor teaches the nursing students about the major functions of the upper respiratory tract. What will the best plan by the nursing instructor include?

Question

1. Inward airflow from the trachea branches off to the two bronchi.
2. The nose warms the air before it reaches the lungs.
3. The nasal mucosa is the first line of immunological defense.
4. Activation of the parasympathetic nervous system constricts arterioles in the nose.
5. Activation of the sympathetic nervous system constricts arterioles in the nose.

Answer 1

Correct Answer: 2,3,5
Rationale 1: The trachea and bronchi are part of the lower respiratory tract.
Rationale 2: The nose warms the air before it reaches the lungs.
Rationale 3: The nasal mucosa is the first line of immunological defense.
Rationale 4: Activation of the sympathetic nervous system, not the parasympathetic nervous system, constricts arterioles in the nose.
Rationale 5: Activation of the sympathetic nervous system constricts arterioles in the nose.