2.2 The Respiratory Tract Histology Part 2

Question 1

What are the functions of the type II alveolar cells?

Answer 1

1. produce and secrete surfactant
2. divide to replace damaged type I cells

Question 2

What are alveolar macrophages also known as?

Answer 2

dust cells

Question 3

What are the functions of alveolar macrophages?

Answer 3

1. phagocytize toxic particles, allergens, or infectious materials
2. primary immune defense system