Only dermis is vascularized. Nutrients reach epidermis by diffusing through the tissue from the blood vessels. Underneath dermis is hypodermis (superficial fascia), also called subcutaneous tissue which is composed of loose connective tissue (mostly areolar and adipose).
A collagen dressing is a type of wound dressing that is made with a form of collagen to aid in the body's healing processes. Collagen is a category of structural proteins that are naturally present in almost every part of the human body and are especially common in connective tissue.
Product description. Systagenix Fibracol Plus Collagen Wound Dressing With Alginate 4 x 4 3/8 Inch is an advanced wound care dressing with 90% collagen composition. Twice as absorbent as traditional Fibracol Collagen-Alginate Dressing. Combines with exudate to maintain a moist wound environment, enabling a rapid rate of healing.