<prompt> All are true about skin grafting, except :Partial thickness graft involves epidermis and part of dermis.Full thickness graft includes epidermis, dermis, without subcutaneous tissue.For large areas full thickness graft is used.Full thickness graft has cosmetic value.  <response>: For large areas, partial thickness graft is used. This is because when a partial thickness graft is lifted from the donor site, a part of dermis is left at the donor site which causes spontaneous re-epithelization of the donor site. Because of this healing ability of the donor site, large partial thickenss grafts can be prepared. 