by using these antibodies , tissue distribution of various types of collagen in normal bovine lung was examined by indirect immunofluorescence microscopy . both type i and iii collagens were found to distribute widely in the interstitium of bronchial tree , bronchial lamina propria and of interlobules as well as alveolar nipples and adventitia of pulmonary arteries .
C0024109
lung
C0034052
pulmonary arteries