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For example, millions of muscle cells make up muscle tissue. An organ is made from two or more tissues, which all work together to do a particular job, like the heart in animals or a leaf in a plant.
The human immune system immediately recognizes those animal organs and the animal tissue as foreign ... NEERGAARD: We really ...
Replacing a human organ with a pig’s is complicated, said Dr. Shimul Shah, an expert in xenotransplantation — the transplant of animal organs into humans — and division chief of abdominal ...