Organ transplants (corrected)
I truly believe after thinking about this subject and reading such books as "The Bloody Sacrifice of the New Age" and of course Genesis that my heart is mine and mine alone and it is for no other. St John Eudes in his book "The Immaculate heart of Mary" puts together a very good description of the relationship of our body and soul from scriptures.
Genesis tells us that on the sixth day "Man and Woman He made us" This was the day He, the Creator made us different from animals by giving us a piece of His thought, called a soul. It is my understanding that the soul therefore decides our gender...sex or what have you.The Church has always linked Body and Soul even music writers of other times have pursued this relationship.
Read the following links and wonder if over heart transplants we are scripturally wrong and perhaps medically wrong. In the second link you may just deduce the donor's family is catholic.
Memories of the habits and the teachings of the Catholic Church