Alveoli Adaptations

Question 1

What are the adaptations of the alveoli in the lungs for efficient gas exchange

Answer 1

Structure : Each alveolus is surrounded by a network of capillaries
Fuction: This helps to maintain a steep concentration gradient , so lots of diffusion can occur
Structure:Each alveoli has a thin moist wall
Function: This provides a short(quick) diffusion pathway for gasses
Structure:Each alveoli has a very large surface area
Function: This allows the maximum area for diffusion