| Column I | Column II | ||
| A | Ball and Socket | P | Elbow |
| B | Hinge | Q | Hip |
| C | Pivot | R | Atlanto-axial |
| D | Saddle | S | Thumb |
| A | B | C | D | |
| 1. | P | R | S | Q |
| 2. | Q | P | S | R |
| 3. | P | S | R | Q |
| 4. | Q | P | R | S |
| Type of synovial joint | Example | |
| 1. | Pivot | Between atlas and axis |
| 2. | Gliding or plane | Between adjacent vertebrae |
| 3. | Saddle | Base of thumb |
| 4. | Hinge | Knee |