TYPES OF SYNOVIAL JOINTS: THE HINGE 🚪 Yesterday, we posted our 1st post about a synovial joint (scroll down if you haven't seen it!). Here's the 2nd post in the series. The hinge (ginglymus or ginglymoid) is a joint in which the articular surfaces are molded to each other in a manner that permits motion only in one plane. Strong collateral ligaments usually connect the articular surfaces of these joint bones. Examples of hinge joints: 👌🏻Elbow joints 👌🏻Knee joints 👌🏻Ankle joints 👌🏻Interp