What does the term 'xenotransplantation' mean?

The term 'xenotransplantation' specifically refers to the transplantation of organs or tissues from non-human animals to humans. This area of transplantation is significant because it offers potential solutions for the shortage of human organs available for patients in need. Animal organs, particularly from genetically modified animals, are being explored to overcome issues like organ rejection and compatibility.

The focus of xenotransplantation is largely on the immune response of the human body to foreign tissues, as well as ethical and regulatory considerations surrounding the use of animal organs in humans. This is particularly relevant in the context of advancing medical research and addressing the growing demand for organ donations.

The other terms in the options relate to different types of transplantation processes. For instance, the transplantation of human organs to animals pertains to a different field studied in regenerative medicine, while the transplantation from humans to humans concerns typical organ donation. Transplantation of synthetic organs also represents another innovative segment in medical science but does not fall under the definition of xenotransplantation. Thus, the correct understanding of xenotransplantation emphasizes the cross-species aspect of the practice.