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.
Suturing is the preferred technique for laceration repair.5 Absorbable sutures, such as polyglactin 910 (Vicryl), polyglycolic acid (Dexon), and poliglecaprone 25 (Monocryl), are used to close deep, multiple-layer lacerations.