a: Esophagus ~
b: a stretchy pipe
What:
"You swallow by choice, but once the swallow begins, the digestion process becomes involuntary and moves along under the control of the nerves. The esophagus is like a stretchy pipe that's about 10 inches (or 25 centimeters) long. It moves food from the back of your throat to your stomach."
Useful?
Writer: Angie Best-Boss with David Edelberg, M.D.
LCC:
Where:
Date: Dec 29 2013 1:11 PM
# 4485 Critique Analogy