The<unk>  is a layer of<unk>  connective tissue, which is thicker and less cellular than the normal intima, found in atherosclerotic plaques. The<unk>  contains macrophages and smooth muscle cells. The<unk>  of an atheroma is composed of bundles of muscle cells, macrophages, foam cells, lymphocytes, collagen and elastin. The<unk>  is prone to rupture and ulceration which can lead to thrombosis. In advanced lesions further complications may arise including calcification of the<unk> .
Fibrous cap
Ossification center
Neuromatrix
Stratum lucidum
Root sheath 
Epicles
Stratum granulosum
Neointima