EVERYDAY SCIENCE

Detailed explanation-1: -[3][4] The hinge joints of the body include the elbow, knee, interphalangeal (IP) joints of the hand and foot and the tibiotalar joint of the ankle.

Detailed explanation-2: -A synovial joint is a kind of joint which is found between two bones that move against each other, like joints of limbs. For example, shoulder, hip, elbow and knee. Therefore, a hinge joint is defined as the joint between two bones that allows movement only in one plane.

Detailed explanation-3: -The elbow joint is a synovial hinge joint, similar to the ankle and knee joints. Two or more bones form hinge joints that move along an axis, rather than rotate like the hip joint. The distal humerus and proximal ulna are the primary elbow joint bones. The hinge joint allows the elbow to bend and straighten.

Detailed explanation-4: -A hinge joint (ginglymus or ginglymoid) is a bone joint in which the articular surfaces are molded to each other in such a manner as to permit motion only in one plane. According to one classification system they are said to be uniaxial (having one degree of freedom).