Three most important functions of the skin?

1. Protection: The skin acts as a physical barrier protecting the body from external elements such as UV radiation, chemicals, and pathogens. It also assists in regulating body temperature and preventing water loss.

2. Sensation: The skin is the primary sensory organ, containing specialized nerve endings that allow us to feel sensations like touch, pressure, temperature, and pain.

3. Excretion: The skin plays a role in excreting waste products such as sweat and sebum through sweat glands and sebaceous glands. This helps maintain the body's electrolyte balance and eliminates certain toxins.