Neck pain often arises from tight neck muscles that pull the neck vertebrae slightly out of alignment, called subluxation, which then impinge on sensory nerves entering the spine between these vertebrae. These sensory nerves relay that information back to the brain setting off the alarm in the form of pain.
Wrist Bending. Forward bending of your wrist is called flexion. This motion is needed for daily activities such as styling your hair, writing, getting dressed, using a screwdriver and lifting heavy objects. Normal wrist flexion is approximately 70 to 90 degrees.
range of movement (ROM). how far a joint permits rotation of the moving parts about the axis of the joint. Usually measured in degrees or radians. Depends on the articulating surfaces, the length and elasticity of ligaments and the properties of muscle, tendon and other soft tissue surrounding the joint.