Answer:
Within the lungs, bronchus divides into smaller and smaller tubes (bronchioles) and finally terminate in balloon-like structures called alveoli. The alveoli are made up of thin moist membranes which are richly supplied with blood and provide a very large surface area for the gaseous exchange.
Note - If the alveolar surface may spread out, it would cover about 80 m2 area.
You need to login to perform this action.
You will be redirected in
3 sec