In addition, trivial shortening of hypertrophied smooth muscle in the thickened wall of an arteriole will reduce the radius of an already narrowed lumen to a much greater extent than if the muscle and lumen were normal.
In addition, trivial shortening of hypertrophied smooth muscle in the thickened wall of an arteriole will reduce the radius of an already narrowed lumen to a much greater extent than if the muscle and lumen were normal.
另外，小动脉壁增厚时，肥大的平滑肌细胞有轻微缩短，从而使业已狭窄的管腔半径比肌肉和管腔正常时更为缩小。