Chronic bronchitis isnât contagious, but itâs a serious health problem that requires a doctorâs care. Acute, which can last for 1 to 3 weeks. Itâs usually caused by cold or flu viruses.
body movement, motion of all or part of the body, especially at a joint or joints. Body movements include abduction, adduction, extension, flexion, rotation and circumduction.
For a single list summarizing all the movements of the body included in this section-see the study page about types of movements at joints. Short definition of Retraction (in the context of a term to describe movement of the body) : Retraction is movement of a body part in the posterior direction, i.e. being drawn. . The movement of retraction is the opposite of the movement of protraction.