a: heart valve ~
b: a check valve
What:
"A heart valve is like a check valve, directing blood in one direction and preventing back flow."
Useful?
Writer: Dr. Bart Denys
LCC:
Where:
Date: Aug 20 2015 3:38 PM
# 8291 Critique Analogy
"A heart valve is like a check valve, directing blood in one direction and preventing back flow."