Cerebral atherosclerosis
Some of the main components of the plaques are connective tissue , extracellular matrix , including collagen , proteoglycans , fibronectin , and elastic fibers; crystalline cholesterol , cholesteryl esters , and phospholipids; cells such as monocyte derived macrophages , T-lymphocytes , and smooth muscle cells . 
<triplet> fibronectin <subj> extracellular matrix <obj> cell component <triplet> elastic fibers <subj> extracellular matrix <obj> part of