bronchiole in lung (magnification x 100) hematoxylin and eosin stain. cross section showing ciliated epithelium lining, lumen, smooth muscle in wall, and surrounding alveoli. smooth muscle causes bronchoconstriction in asthma. - 細支氣管 個照片及圖片檔室內
digital cross section illustration of human lung with pollen allergens in trachea and bronchioles ca - 細支氣管 幅插畫檔、美工圖案、卡通及圖標
digital cross section illustration of trachea and bronchioles in human lung of asthmatic - 細支氣管 幅插畫檔、美工圖案、卡通及圖標