Question

Allow back and forth movement

Answer 1

Saddle joint – this permits movement back and forth and from side to side, but does not allow rotation, such as the joint at the base of the thumb. Hinge joint – the two bones open and close in one direction only (along one plane) like a door, such as the knee and elbow joints.

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Answer 2

Answer:

Saddle joint - this permits movement back and forth and from side to side, but does not allow rotation, such as the joint at the base of the thumb. Hinge joint - the two bones open and close in one direction only (along one plane) like a door, such as the knee and elbow joints.

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