Fig. 3.

An illustration of the material axes of the smooth muscle cells (${\mathbf{m}}_s$), elastin (${\mathbf{m}}_e$), and collagen (${\mathbf{m}}_c$) used in the model: A) relative to the intact specimen, B) showing the tissue components, and C) relative to the Cartesian coordinate for mechanical testing $\stackrel{\mathbf{ˆ}}{\mathbf{e}}$. The color and subscript correspond to the components: collagen (green, $c$), elastin (blue, $e$), and SMCs (red, $s$). (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)