Passive viscoelastic properties of the rabbit aorta in vitro |
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Authors: | E Gallasch H W Weiz?cker |
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Institution: | Institute of Physiology, University of Graz, Austria. |
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Abstract: | Tensile tests on longitudinal and circumferential strips of the rabbit aorta have been performed. Stress-strain and relaxation parameters have been estimated with respect to four stress levels and three positions on the aorta. Stress-strain data indicate that in longitudinal direction the aorta becomes more compliant with distance from the aortic arch. The opposite tendency is found for the circumferential direction. Stress-relaxation is found to be strongly dependent on the stress level. The results are discussed with regard to arterial dynamics. |
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