Tissue: A group or layer of cells that perform specific functions. For example, muscle tissue is a group of muscle cells.issue: A group or layer of cells that perform specific functions. For example, muscle tissue is a group of muscle cells.
1 The skin is a barrier to the outside world protecting the body from infection, radiation, and extremes of temperature.  There are many types of wounds that can damage the skin including abrasions, lacerations, rupture injuries, punctures, and penetrating wounds.
â¢ Sutures attached to needles are the most common method of approximating skin edges. â¢ Sutures are classified as absorbable or non-absorbable and as either monofilament or multifilament. â¢ Sutures vary in their capability to provoke infection, with catgut being the most reactive and polypropylene being one of the least reactive suture