If You Lay Your Forearm Along the Table,you Can Rotate

question 58

Multiple Choice

If you lay your forearm along the table,you can rotate it so that your hand changes from a palm-down to a palm-up position.This is possible because your radius and ulna join at a ________ joint.

• A)ball-and-socket
• B)hinge
• C)pivot
• D)twist

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