Bodies and Their Parts

Here I develop an account of what makes something a part of the body. The account presented is not an analysis of parthood generally, but an analysis of parthood specifically for what we are inclined to call a “body,” including but not limited to the bodies of human and nonhuman organisms. Drawing on influential accounts of parthood in the philosophical literature, with an emphasis on the core idea that something is a part in virtue of its contribution to the whole, I develop an analysis of bodily parthood that identifies what contribution to a body is necessary and sufficient for being a part of that body.