Pulmonary Anatomy and Physiology

Question 1

Respiratory Circulation

Answer 1

1.. Oropharynx or Nasopharynx
2. Larynx
3. Trachea
4. Bronchi
5. Carina
6. Lobar Bronchi (3 on the right, 2 on the left)
7. Segmental Bronchi
8. Subsegmental Bronchi
9. Terminal Bronchioles
10. Respiratory Bronchioles
11. Alveolar Ducts
12. Alveoli

Question 2

What is the surface area for gas exchange?

Answer 2

Est. 300 million alveoli
Est. 2000 square feet

Question 3

What are the physiologic aspects of the lung?

Answer 3

Ventilation
Circulation
Diffusion
Oxygen Transport
Carbon Dioxide Transport

Question 4

Abnormalities of Gas Exchange

Answer 4

Hypoxemia
Hypercapnia

Question 5

Causes of Hypoemia

Answer 5

Shunt
V/Q Mismatch
Hypoventilation
Low inspried PO2

Question 6

Causes of Hypercapnia

Answer 6

Hypoventilation