Wound Healing Flashcards
What is a wound
Tissue injury from different agents
Different types of agents in tissue injury
Mechanical agents
Chemical agents ‘
Radiant energy
Pathogenic micro organism
Main type of injury occuring in mechanical agents
Contusions
Lacerations
Types of wound
Contusion
Open wounds (puncture, laceration , penetrating, perforation)
Pathophysiology of contusion
Mostly blunt trauma leading to injury of tissues sub adjacent to surface epithelia with disruption of connective tissue and extravasation of blood leading to bruise
Simplest form of open wound
Abrasion
Treatment procedure of wound
Débridement to remove dead and dying tissue and foreign materials by irrigation and soapy antiseptic
Strict asepsis
Wound closure
Minimal blood loss
Gentle practice
Immobilization. And elevation of injured part
What is reGeneration
Replacement of lust tissue by new tissue that is the same
What Is perfect regeneration
If the tissue restored is indistinguishable from its original
What is resolution
When tissue damage is minimal and there is recovery with essentially same type of tissue with no new tissue formed
Three steps in wound healing
Epithelialization
synthesis of fibrous tissue
wound contraction
What is the goal of wound contraction
When tissue loss is important there is inward movement of tissue margins into closer approximation to ensure better healing
What happens in epithelialization
Rapid Multiplication of basal cells