a: lung ~
b: a tree
What:
"The human lung is like a tree. The trachea (trunk) for conduction of air, conduction continues with the bronchi (branches), and after 20 divisions or so come alveoli, for gas exchange (like leaves). "
Useful?
Writer: Not Stated
LCC:
Where:
Date: Mar 7 2014 4:15 PM
# 5253 Critique Analogy