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 dermis is the middle layer of your skin. It holds most of the glands and nerve endings. For example, your sweat gland and your oil glands are located on this level.You feel hot, cold, touch and several others through your dermis.he dermis is the layer of tissue under the epidermis. The dermis  is also called the subcutaneous tissue. The dermis is one of the three layers of the skin. Skin is the on â¦ ly other answer, and it is considered the largest organ of the human body.