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.
In the deepest layer of the epidermis, called the stratum basale, Merkel cells are found, these cells are part of the cell-neuron complex: a close association with an afferent nerve ending, the sensory part of the epidermis.kin thickness varies and is on average 1mm thick; the thinnest on eyelids at 0.5mm and the thickest at 1.5mm on the palms and soles. Skin consists of multiple layers (stratified), epidermis, dermis and hypodermis (deepest layer).