PEIR Digital Library

Welcome to the Pathology Education Informational Resource (PEIR) Digital Library, a multidisciplinary public access image database for use in medical education.

[ stop the slideshow ]


00203252.jpg 00203250Thumbnails0020324400203250Thumbnails0020324400203250Thumbnails0020324400203250Thumbnails0020324400203250Thumbnails00203244

DIAGRAM: BRONCHUS: Asthma: Late phase of an asthma attack, low magnification, basal lamina; Arrows on Basal Membrane -- The late reaction begins approximately 6 hours after initial exposure to antigen and may last for several days. It is characterized by hyperreactivity of the airways, which results from underlying inflammation.