Answer the
Why can our elbow not move backwards?

Explanation

**Step-by-Step Solution:**

1. **Understanding the Elbow Joint**: The elbow is classified as a hinge joint. This type of joint allows movement in one direction or plane, similar to how a door opens and closes.

2. **Movement Direction**: The hinge joint of the elbow permits flexion and extension, which means it can bend (flex) and straighten (extend) but not move backward.

3. **Reason for Limited Movement**: The structure of the hinge joint restricts the elbow from moving in the opposite direction (backward). This is due to the way the bones and ligaments are arranged at the joint.

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