Flexion is the movement of a joint that increases the angle between the joint and the body part. Movement of a body part to the side is called lateral flexion. This type of movement is commonly ...
Lawrence W. Schneider, David R. Foust, Bruce M. Bowman, Richard G. Snyder, Don B. Chaffin, Thomas A. Abdelnour, Janet K. Baum https://www.jstor.org/stable/44633649 ...