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.
Definition of skin for Students. 1  1 : the usually flexible outer layer of an animal body that in vertebrate animals is made up of two layers of cells forming an inner dermis and an outer epidermis. 2  2 : the hide of an animal. 3  3 : an outer or surface layer potato skins.