Respiratory Introduction

Question 0

Describe the pathway from air entering the mouth to an alveolus.

Answer 0

1. Trachea
2. Right/left bronchi
3. Lobar bronchi
4. Segmental bronchi
5. Terminal bronchiole
6. Respiratory bronchiole

Question 1

What are the four major causes of hypoxia?

Answer 1

Ventilation
Perfusion
Ventilation/Perfusion ratio
Diffusion

Question 2

If dust is inhaled, where does it settle?

Answer 2

Terminal bronchioles, NOT alveoli

Question 3

What is the equation for compliance?

Answer 3

Compliance = dV/dP

Question 4

What is the compliance of the lungs?

Answer 4

500 mL/3 cmH2O

Question 5

What prevents alveolar collapse?

Answer 5

surfactant