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.
Laceration repair mends a tear in the skin or other tissue. The four goals of laceration repair are to stop bleeding, prevent infection, preserve function, and restore appearance. The laceration is cleaned by removing any foreign material or debris.