Excess upper abdominal fat may occur from years of poor diet, lack of exercise and stress. Age and genetic factors also play a role in where your body accumulates belly fat. Upper abdominal fat tends to be visceral fat -- the kind of fat that lies between your abdominal wall and your organs.
Skin (percutaneous, dermal) absorption is a term that describes the transport of chemicals from the outer surface of the skin both into the skin and into the systemic circulation. The surface area of an adult is about 20,900 cm3 and the surface area of a child of 6 years is about 9,000 cm3. 2  These figures and figures for other body parts or portions can be found in the EPA Exposures Handbook 1996 or estimated using other databases.
Arteries. A blood vessel that carries blood from the heart to tissues and organs in the body. Dermis. The inner layer of the two main layers of the skin. The dermis has connective tissue, blood vessels, oil and sweat glands, nerves, hair follicles, and other structures.It is made up of a thin upper layer called the papillary dermis, and a thick lower layer called the reticular dermis. Epidermis.apillary Dermis. The thin top layer of the dermis (the inner layer of the skin). The papillary dermis has connective tissue and blood vessels that give nutrients to the epidermis (the outer layer of the skin) and that help control the temperature of the skin. PubMed Health Glossary.