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.
Dermal tissue. Dermal Tissue. generally a single layer of cells. They are tightly packed and covered with a trans parent, waxy, material called the cuticle. Vascular Tissue. functions in support and trans portation of food and water throughout the plant.Ground Tissue.ermal tissue. Dermal Tissue. generally a single layer of cells. They are tightly packed and covered with a trans parent, waxy, material called the cuticle. Vascular Tissue. functions in support and trans portation of food and water throughout the plant. Ground Tissue.