Refers to the technologies used to induce: (Injected) liver, cartilage, etc., cells to grow (within a recipient organism's body) and form replacement [integral] tissues;(Extant) cells within the body encouraged to grow and form desired tissues, via precise injection of relevant compounds (e.g. certain growth factors, growth hormones, stem cells, etc.); Laboratory grown tissue or organs to replace or support the function of defective or injured body parts (an example is skin tissue culture for grafts).