DIAGRAM: GASTROINTESTINAL: GI: ARTERY: Pathogenesis of Atherosclerosis - 5 of 13; A=Lipoprotein, B=T Lymphocyte, C=Granulocyte, D=Macrophage -- Monocytes penetrate into the intima and undergo a complex series of phenotypic alterations to become arterial macrophages. They then secrete chemoattractants and mitogens, which