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.
Sterile Surgical Adhesive Dressings. 1  Sterile sponge, non-adhesive pad and cloth silk tape in one dressing. 2  All-in-one design helps reduce nursing time. 3  Non-adherent contact layer permits free flow of drainage, protects the wound site, and will not stick to granulating tissue. Soft, highly absorbent rayon/cellulose pad for light to medium draining wounds is ideal for long surgical incisions, lacerations, abrasions and invasive lines.