Fig. 2From: Cyclooxygenase-2-Dependent Bronchoconstriction in Perfused Rat Lungs Exposed to Endotoxin Scanning electron microscopic image of isolated rat lungs perfused with the TX mimetic U46619 (50 nM) (a) Cross section of completely occluded small bronchiole (B). (b) Longitudinal section of the bronchial-alveolar duct junction showing a constricted terminal bronchiole just before transition into the respiratory bronchiole. Bars = 20 µm; final magnification: 500×.Back to article page