The term "true skin" refers to the dermis.
Understanding the Dermis
The dermis is a vital layer of the skin, often called the "true skin" due to its complex structure and essential functions. Here's why:
- Location: The dermis lies beneath the epidermis, the outermost layer of skin.
- Structural Components:
- Collagen and Elastin: These fibers provide the skin with its strength and elasticity. Collagen offers resilience, while elastin allows the skin to stretch and return to its original shape.
- Blood Vessels: The dermis is rich in blood vessels, which nourish the skin and regulate temperature.
- Nerve Endings: Various nerve endings within the dermis are responsible for our sense of touch, pressure, pain, and temperature.
- Hair Follicles: Hair growth originates within the dermis.
- Sweat Glands: The sweat glands in the dermis help regulate body temperature through perspiration.
- Sebaceous Glands: These glands produce sebum, an oily substance that lubricates and protects the skin.
Why the Dermis is Called "True Skin"
According to Flexi, the dermis is often called "true skin" because:
- It contains the majority of the skin's functional structures like sweat glands, hair follicles, and blood vessels.
- It gives skin its strength and elasticity because of its collagen and elastin fibers.
Key Functions of the Dermis:
- Support and Structure: The dermis provides the structural foundation for the skin.
- Nutrition and Regulation: Its blood vessels supply nutrients to the skin cells and regulate body temperature.
- Sensory Perception: Nerve endings in the dermis allow us to feel touch, temperature, and pain.
- Hair Growth: Hair follicles, located in the dermis, produce hair.
In Summary
The dermis, often called the "true skin," is a complex and essential layer beneath the epidermis. It provides the skin with strength, elasticity, nourishment, and sensory capabilities. Its rich structures and functions make it a vital part of the human body.
