2nd 3rd optional. FDA has announced an official date of 2010-06 when they will accept submissions to 3 rd edition. The 3 rd Edition will be Mandatory 2013-06-01. Health Canada has announced a mandatory date of 2012-06-01. The EU date of 2012-06-01 has been published in the Official Journal.
I don't know what you mean by root word. Lipo - is the root for fat and used often at the molecular level. Adipose - is the word for fat tissue. fat: <biochemistry> A triglyceride (lipid) that is usually solid at room temperature. http://www.americanheart.org/presenter.j...
Under the top layer is the middle layer, known as dermis. In this layer we find hair sacks, sweat glands, blood vessels, nerve receptors and connective tissue. Under dermis is the top layer of stored subcutaneous fat. In this part of the skin we have fat tissue made up of fat cells bound by connective tissue. Fat tissue is not a smooth mass. It is made from fat chambers containing fat cells linked by connective tissue.