The two primary load-bearing components of the connective fiber micro-architecture of aorta are the proteins elastin and collagen. The structure of elastin and collagen fibers is important to support the proper function of the aorta, and alteration of the quantity and/or arrangement of these fibers can lead to mechanical and functional changes associated with aortic disease. Therefore, an adequate quantification of the micro-architecture of elastin and collagen fibers in the aortic wall would provide insight into the influence of micro-architecture on the biomechanical response of the aorta in health and disease.

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