PEIR Digital Library

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

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DIAGRAM: GASTROINTESTINAL: GI: ARTERY: Effects of Hypertension on the Vessel Wall - 9 of 14; A=Normotensive Vessel, B=Hypertensive Vessel -- Functional changes with respect to constricting and relaxing factors occur, like reduced endothelium-dependent relaxation of the vessel wall.