Prof. Grabowski is thinking about transplanting kangaroo tendons into her own legs so that she can run a faster marathon. Her Achilles tendon needs to be 16 cm long to reach from her gastrocnemius to her calcaneus. It also must withstand a force of 7 times her body weight (body weight = 550N). The minimum safe thickness is 3.85E-5 m^2.
Assuming the same tendon geometry, can you make a logical argument for why she should transplant tendon from a horse instead of a kangaroo?
Transplantation is a process of replacing ones own organ with others organ. The organ used for replacement can be from other person of same species or from other species or even from other genus .
The chances of acceptance decreases as the degree of closeness decreases. Our body rejects the organ if there is less acceptance by our body. The acceptance depends on the receptors present on the surface of the cells that are considered as antigens by our body. So lesser the antigens greater the acceptance.
Among the horse and kangaroo, horse is more genetically close to our species compared to kangaroo. Hence transplantation of Horse tendon is quite better.
Prof. Grabowski is thinking about transplanting kangaroo tendons into her own legs so that she can...