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. Author manuscript; available in PMC: 2021 Mar 1.

Published in final edited form as: Arterioscler Thromb Vasc Biol. 2020 Feb 26;40(3):e37–e46. doi: 10.1161/ATVBAHA.120.313991

Figure 2. — (A) The lamellar unit is composed of smooth muscle cells (SMCs) sandwiched between two layers of elastic fibers and surrounded by collagen bundles. (B) The elastin-contractile unit is a unique configuration of elastin fibers, focal adhesions/dense plaques in the SMC plasma membrane, and contractile filaments inside the SMCs. Used with permission.¹⁰⁰

Figure 2. — (A) The lamellar unit is composed of smooth muscle cells (SMCs) sandwiched between two layers of elastic fibers and surrounded by collagen bundles. (B) The elastin-contractile unit is a unique configuration of elastin fibers, focal adhesions/dense plaques in the SMC plasma membrane, and contractile filaments inside the SMCs. Used with permission.¹⁰⁰