Lecture 9 - Lower Airways and Blood Supply

Question 1

Compositions of respiratory zone?

Answer 1

Respiratory bronchioles, alveolar ducts, alveolar sacs, alveoli

Question 2

Emphysema mechanism?

Answer 2

increased inflammatory enzymes destroy elastin and collagen,

Question 3

Emphysema effects?

Answer 3

reduced elastic recoil, connective tissue loss, increased air spaces and compliance, reduced area for gas exchange

Question 4

Emphysema signs and symptoms?

Answer 4

shortness of breath, expanded chest (trapped air)