Correct answer: granulation tissue is a naive connective tissue composed of new capillaries and fibroblasts, accompanied by inflammatory cell infiltration. It is bright red, granular, soft and moist, and looks like fresh granulation, hence the name. Granulation tissue has the following important functions in the process of tissue injury repair: 1) anti-infection and wound protection; 2) fill other defects of wound attraction; 3) Foreign bodies such as necrotic tissues and blood clots.