PATHOLOGY

Detailed explanation-1: -A pig’s heart is anatomically similar to a human, they pose less of a disease risk and the animals grow quickly, making them an excellent substitute.

Detailed explanation-2: -Pig hearts are anatomically and functionally similar to human hearts but, obviously not identical. These differences can cause organ rejection. This happens when the body’s immune system treats a new organ as an unwelcome a foreign object and attacks it.

Detailed explanation-3: -It was the first clinical cardiac transplant to use a pig heart. But attempts to transfer organs from one species to another-with the goal of treating human disease-date back more than a century.

Detailed explanation-4: -The first heart transplant in a human ever performed was by Hardy in 1964, using a chimpanzee heart, but the patient died within 2 hours. Starzl carried out the first chimpanzee-to-human liver transplantation in 1966; in 1992, he obtained patient survival for 70 days following a baboon liver transplant.