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 two layers, the epidermis and the dermis. The epidermis, the upper or outer layer of the skin, is a tough, waterproof, protective layer. The dermis, or inner layer, is thicker than the epidermis and gives the skin its strength and elasticity.