Partial Thickness Injury - limited to the epidermis and superficial dermis with no damage to the dermal blood vessals. Healing occurs by regeneration of epithelial tissue. Full Thickness Injury - injury involves loss of the dermis and extendes to deeper tissue layers and disruptes dermal blood vessals.
Wound healing involves the synthesis of several types of tissue and scar formation.
Healing occurs in Full Thickness Wounds in 3 Stages Inflammatory Stage - purpose of the inflammatory stage is to clean the wound of debris and to stimulate fibroblast cells to produce collagen. White blood cells play a key role during the inflammatory phase. Proliferative Phase - new blood vessals and collagen are laid down in the wound bed. The result of this process is referred to as granulation tissue. Contraction and epithelialization of the wound also occur during this phase.