a: ball-and-socket joint ~
b: fist in a hand
What:
"To see what a ball-and-socket joint is like, make a fist with one hand. This is like the ball. Cup the fist with your other hand. This is like the socket. Swivel the fist."
This is similar to how a hip joint works.
Useful?
Writer: Not Stated
LCC:
Where:
Date: Dec 27 2014 10:16 PM
#6953 Email metamia about this
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