Tissue repair

Topic: Anatomy & physiology

The replacement of damaged tissue. Tissues whose cells keep dividing, such as the epidermis and the lining of the gut, replace lost cells with the same cell type (regeneration), whereas neurons and cardiac muscle that dies in an infarction are not replaced, and the loss is permanent. Wound healing passes through hemostasis, inflammation, proliferation and maturation: proliferation forms new epidermis, pink granulation tissue with new capillaries and collagen, and in maturation collagen deposition forms a scar. Protect granulation tissue during dressing changes.

Also known as:

Regeneration, Granulation tissue, Scar tissue

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