Medical Definition of TISSUE. : an aggregate of cells usually of a particular kind together with their intercellular substance that form one of the structural materials of a plant or an animal and that in animals include connective tissue, epithelium, muscle tissue, and nerve tissue.edical Definition of TISSUE. : an aggregate of cells usually of a particular kind together with their intercellular substance that form one of the structural materials of a plant or an animal and that in animals include connective tissue, epithelium, muscle tissue, and nerve tissue.
Lacerations are the blunt force injuries in which the skin and the underlying tissues are torn apart due to application of force. Characteristics. Types of Lacerations. Crushing of the skin and subcutaneous tissues between two hard objects, splits them, producing split lacerations (perpendicular impact).
Severe tears are called third degree and fourth degree lacerations. A third degree laceration is a tear that extends through vaginal tissue, perineal skin, and perineal muscles that extend into the muscles around the anus. A fourth degree laceration extends to the anal sphincter and the tissue beneath it. These severe tears can cause problems with incontinence later. Infections are possible, but are unlikely if youâre receiving proper treatment.