Question

Why elbow moves in one direction?..​

Answer 1

Answer:

Our elbow cannot move backward because the elbow has a hinge joint that allows movement in only one direction.

Explanation:

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Answer 2

Answer:

Our elbow cannot move backward because the elbow has a hinge joint that allows movement in only one direction. ... Hinge joints are formed between two or more bones where the bones can only move along one axis to flex or extend.