a: cartilage ~
b: lubricant in an engine
What:
"The cartilage is like the lubricant in an engine, allowing for smooth mobility and flexibility in the joint and preventing painful bone-on-bone contact. And once the thin coating is damaged it can be difficult and often impossible to repair."
Useful?
Writer: TRAVIS SAWCHIK
LCC:
Where:
Date: Sep 24 2015 12:15 PM
# 8817 Critique Analogy