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.
2. Dermis, which is a layer of connective tissue, is responsible for structural strength and flexibility of the skin. It has two layers, which are Papillary Layer, and Reticular Layer. 3. Subcutaneous Tissue is the third, but not actually part of the skin.It is Loose Connective Tissue that attaches the dermis to underlying structures. The three layers of human skin are:EpidermisDermisSubcutaneous tissue The epidermis is the outer/visible layer. The epidermis consists of 5 layers in itself.he subcutaneous tissue is a layer of fat and connective tissue in which there are larger blood vessels and nerves. This layer regulates the temperature of both the body and the skin itself. In descending order from the surface: epidermis, dermis and hypodermis.