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 pressure balanced Single or Universal Expansion joint is an assembly designed to absorb axial movement and /or lateral deflection while the pressure thrust is balanced by means of an additional bellows and tie rods.
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.