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.
A rhytid, (riâ²tid), is a wrinkle in the skin. The skin is composed of three layers: the epidermis, the dermis, and subcutaneous fat. The epidermis, the top layer of the skin, produces melanin, which gives the skin its color. It also protects the skin, with special cells known as keratinocytes, against environmental toxins.