caption: Muscle Tone Involuntary contraction of a small number of motor units (alternately active and inactive in a constantly shifting pattern)
exif: {"Image DocumentName": "Muscle Tone Involuntary contraction of a small number of motor units (alternately active and inactive in a constantly shifting pattern)", "Image ImageDescription": "keeps muscles firm even though relaxed. does not produce movement. Essential for maintaining posture (head upright) Important in maintaining blood pressure. tone of smooth muscles in walls of blood vessels. Tortora & Grabowski 9/e \uf0e32000 JWS.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}