COMPARISON OF ELASTIC MODULI OF AORTIC TISSUES FROM PIGS, RABBITS AND RATS

Uniaxial tests were conducted on 222 circumferential and longitudinal aortic strips from 7 pigs, 8 rabbits and 13 rats. The results show that: 1. The secant elastic modulus of the pig aorta is much higher than that of the rabbit and the rat aorta. 2. The secant elastic modulus of the rabbit aorta is practically the same as that of the rat aorta. 3. The secant Poisson's ratios are comparable in values for tissues from all the three animal species.