The skin contains more than 1,000 nerve endings per square inch. These nerve endings are responsible for sensing touch, pain, temperature, and pressure. When a nerve ending is stimulated, it sends a signal to the brain, which allows you to feel the corresponding sensation.
The skin also contains other important structures, including:
- Blood vessels: These carry blood to and from the skin, providing it with oxygen and nutrients.
- Oil glands: These produce sebum, an oily substance that helps to keep the skin moist and protected.
- Sweat glands: These produce sweat, which helps to regulate body temperature.
