... has a low aerobic metabolism. Elastin Elastic modulus Metabolic rate Among lower vertebrates, including fishes, the degree of aerobic activity is reflected by the level of pressure generated by the heart. For example, tunas have high metabolic rates and are fast, continuous swimmers...

...: The mechanical properties of the dorsal aorta and the pulmonary artery during fasting and after feeding reveal increased pulmonary artery distensibility and elasticity during digestion, which possibly improves the Windkessel effect. Collagen Dorsal aorta Elastin Postprandial period Snakes Sulfated...

... that is arranged in parallel with dense and straight elastin fibres. This allows the muscles to accommodate large tissue deformations of the VGB yet still operate within the known strain limits of vertebrate skeletal muscle. VGB transverse strains in routine-feeding rorquals were substantially less than those...

... in that of mammals, and these vessels have a larger proportion of collagen, thinner elastin lamellae and a tension per lamella of only approximately 0.4–0.5 N m −1 at mean blood pressure ( Gibbons and Shadwick, 1989 ). These results suggested that the lamellar unit of the aorta is structurally and mechanically...

...G. W. G. Chalmers; J. M. Gosline; M. A. Lillie ABSTRACT An evolutionary trend towards increasing hydrophobicity of vertebrate arterial elastins suggests that there is an adaptive advantage to higher hydrophobicity. The swelling and dynamic mechanical properties of elastins from several species were...

...) and abdominal (approximately 1:3) aortas, but the magnitude of the change in composition does not account for the dramatic difference in mechanical properties. This suggests that there are differences in the elastin and collagen fibre architecture of these vessels. The descending aorta contains dense bands...