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.
Hair is primarily made of a protein called keratin that also makes nails and forms the outer protective layer of skin. Each hair consists of three layers: 1. The cuticle-the outer layer, thin and colourless. It acts as the protective layer. 2. The cortex which contains melanin, which is responsible for hair colour.