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.
Types of Synovial Joints. The many synovial joints of the human body enable movement of various types, largely based on their shape. For example, the elbow and knees joints are classified as hinge joints and act like the hinges of a door, with one bone remaining stationary and the other bone moving along a single axis. The highly movable ball-and-socket joints of the shoulder and hip allow movement in all directions.