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: Pathogenesis of Atherosclerosis - 5 of 13; Monocytes penetrate into the intima and undergo a complex series of phenotypic alterations to become arterial macrophages. They then secrete chemoattractants and mitogens, which stimulate smooth muscle cell migration from the media and pro