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.
Involuntary, somewhat rhythmic, muscle. contraction and relaxation involving. to-and-fro movements (oscillations or twitching) of one or more parts of the body. It is the most common of all movement. disorders and can affect all parts of the body.