Unit 5: Hemoglobin Testing 6 Original: October 1999 Revision: September 2010 Before you learn about how to use the HemoCue machine and take blood from clients, you need to learn about anemia and the causes of anemia.
Skin has three layers: 1  The epidermis, the outermost layer of skin, provides a waterproof barrier and creates our skin tone. 2  The dermis, beneath the epidermis, contains tough connective tissue, hair follicles, and sweat glands. 3  The deeper subcutaneous tissue (hypodermis) is made of fat and connective tissue.
is the deepest layer of the skin. composed of adipose and areolar  connective tissue. The hypodermis is also known as the subcutaneous  layer.it provides insulation and sto â¦ res fat.1  The Five Major Parts of the Brain At its most basic, the brain controls the body.omposed of adipose and areolar  connective tissue. The hypodermis is also known as the subcutaneous  layer. it provides insulation and sto â¦ res fat. 1  The Five Major Parts of the Brain At its most basic, the brain controls the body.