The scientific name for the skin is integument. This term encompasses all the layers of the skin, which are the epidermis, dermis, and hypodermis.
The word "integument" comes from the Latin word integumentum, which means "covering." It accurately reflects the skin's primary function, which is to protect the body from the external environment.
Here's a breakdown of the skin's layers:
- Epidermis: The outermost layer of the skin, responsible for protection against infection, water loss, and UV radiation.
- Dermis: The middle layer of the skin, containing blood vessels, nerves, hair follicles, and sweat glands.
- Hypodermis: The innermost layer of the skin, composed primarily of fat and connective tissue, providing insulation and cushioning.
The skin also plays other important roles, including:
- Temperature regulation: The skin helps to regulate body temperature through sweating and shivering.
- Sensation: The skin contains sensory receptors that allow us to feel touch, pressure, temperature, and pain.
- Vitamin D production: The skin produces vitamin D when exposed to sunlight.
