This statement was developed by the Public Health Nursing Definition Document Task Force. under the direction of the leadership of the Public Health Nursing Section of the American. Public Health Association. The statement was adopted by the Public Health Nursing Section.
A Hinged Expansion joint is an assembly designed to absorb angular rotation in the plane perpendicular to the hinge pins. The hardware consists of two hinged plates 180 Â° apart and joined to the end connection.
3. Hinge joints: The joint surfaces are arranged to allow only back and forth movement such as bending and straightening. Examples of these joints are the elbow where the humerus and ulna join and the knee. 4. Pivot joints: These joints allow only one type of movement, the rotation of one bone on or around another.An example of a pivot joint is the joint between the atlas and axis (C1 & C2) vertebrae, the rotation around each other allows our heads to âpivotâ left and right. 5.. Ball and socket joints: This type of joint allows side to side, back and forth, and rotational movement. Examples of these joints are the hip or shoulder joints, where the head (ball) of one bone fits into the cavity (socket) of another. 6.