Final answer:
The six basic categories of synovial joints are planar, pivot, condyloid, saddle, and ball-and-socket joints.
Step-by-step explanation:
The six basic categories of synovial joints are planar, pivot, condyloid, saddle, and ball-and-socket joints.
Planar joints allow for gliding movements between flat bone surfaces. joints allow for movement in one direction, like the elbow or knee. Pivot joints allow for rotation around an axis, such as the joint between the first and second cervical vertebrae.