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 main layers. The epidermis on the outside and the dermis underneath. New cells are made in the deep layers of the epidermis and are pushed towards the surface. The surface layers of the skin are made up of cells that have died and become filled with a substance called keratin.