Which type of movement would have been possible if
our elbow had a fixed joint.

Explanation

**Step-by-Step Solution:**

1. **Understanding Fixed Joints**: A fixed joint, also known as an immovable joint, is a type of joint that does not allow any movement between the bones it connects. Examples include the joints in the skull.

2. **Identifying the Elbow Joint**: The elbow joint is a hinge joint, which allows for bending and straightening of the arm. If the elbow were to be a fixed joint, it would not function in the same way.

3. **Consequences of a Fixed Elbow Joint**: If the elbow were a fixed joint, it would mean that the forearm and upper arm bones would not be able to move relative to each other. This would prevent any bending or straightening of the arm at the elbow.

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