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.
The layers of the skin are the dermis, epidermis, and hypodermis.   Epidermis, dermis, subcutaneous (fat) Not all professions recognize the subcutaneous as a layer The ep â¦ idermis, the dermis, and the fatty region.The epidermis is the outermost and thinnest layer.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.