Functions of the Skin are listed below:
1. Protection as Functions of the Skin:
- Acts as a physical barrier against mechanical injuries, harmful chemicals, and pathogens.
- The acidic pH of the skin surface inhibits bacterial growth.
- Melanin in the epidermis protects against UV radiation.
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2. Sensation as Functions of the Skin:
- Nerve endings in the dermis allow the skin to sense touch, pressure, temperature, and pain, enabling the body to respond to environmental changes.
3. Temperature Regulation:
- Sweat glands produce sweat that cools the body when it evaporates.
- Blood vessels in the dermis dilate to release heat or constrict to retain heat, helping to regulate body temperature.
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4. Excretion:
- Sweat glands excrete waste products like urea, salts, and water, helping to detoxify the body.
5. Vitamin D Synthesis:
- The skin produces vitamin D when exposed to sunlight, which is essential for calcium absorption and bone health.
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6. Immune Defense:
- The skin contains immune cells that detect and respond to pathogens, providing a first line of defense against infections.
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