icu i s s u e s & a n s w e r s 2 Pulse Oximeter: A small probe attached to the finger, nose, or ear that helps monitor the oxygen in the blood and the patientâs pulse.
In this Article. Your skin is the largest organ of your body, made up of several different components, including water, protein, lipids, and different minerals and chemicals. Its job is crucial: to protect you from infections and other environmental assaults. The skin also contains nerves that sense cold, heat, pain, pressure, and touch.
The skin is made up of: 1  Epidermis: the outermost layer of skin, provides a waterproof barrier and creates our skin tone. 2  Dermis: beneath the epidermis, contains tough connective tissue, hair follicles, and sweat glands. 3  Hypodermis: deeper subcutaneous tissue is made of fat and connective tissue.