CAMRT Radiography Practice Exam

Which of the following is NOT a type of synovial joint movement?

1. Gliding

2. Hinge

3. Pivot

4. Compression

The correct answer is: Compression

The choice indicating "Compression" as not a type of synovial joint movement is accurate. Synovial joints, characterized by a fluid-filled joint capsule that allows for a wide range of motion, facilitate various types of movements including gliding, hinge, and pivot movements. Gliding movements involve two flat bone surfaces sliding past each other, allowing minor movements in multiple directions. Hinge joints, like the elbow, allow movement in one plane, primarily bending and straightening. Pivot joints enable rotation around a single axis, such as the movement between the first and second cervical vertebrae that allows for head rotation. Compression typically refers to the applied force that tends to decrease the volume of a tissue, which is not a specific type of movement associated with synovial joints. Instead, it may occur as an effect on the joints during various physical activities or in the context of joint loading rather than being a recognized movement type. Thus, identifying compression as the option that does not fit within the classification of synovial joint movements is accurate.