Which of the following is classified as an autograft?

An autograft refers to tissue that is transplanted from one site to another within the same individual. It involves harvesting tissue, such as skin, bone, or veins, from a donor site on a patient and transplanting it to another area of the same patient’s body. This is the ideal type of graft because it reduces the risk of rejection and complications related to immune response, as the tissue is genetically identical to the recipient.

In this context, the classification of a saphenous vein graft as an autograft is appropriate when the vein is taken from the patient's own body. This can occur, for instance, during procedures where the vein is removed to be used for bypass surgery or vascular grafting elsewhere in that same individual. The key aspect that makes it an autograft is the use of the patient's own tissue, which enhances compatibility and promotes healing.

Other graft classifications such as dermal grafts can vary based on the source and purpose; allografts involve tissue transplanted from a genetically non-identical member of the same species (like a donor), while xenografts involve tissue from a different species altogether (like porcine or bovine tissue). These options do not fit the criteria for autografting, which is