The Dermis is composed of:
Three types of tissue made of Protein.
- Collagen Elastin.
- Reticular Fibers.
- The upper layer contains a thin arrangement of collagen fibers.
- The lower layer is made up of thick collagen fibers arranged parallel to the surface of the skin.
The Dermis is responsible for:
- Mechanical protection (elasticity).
- Body temperature (capillaries).
- Hair follicles (sebum (oil canals).
- Sweat glands (temperature control).
- Nerves (contact and pain sensors).
- Vitamins, minerals and oxygen (food) supply to the epidermis
- Diffusion via capillaries (small blood vessels).
Specialist Dermal Cells:
- The hair follicles are found here.
- Sebaceous (oil glands) and apocrine (scent glands) are connected to the hair follicle (hair shaft).
- The Dermis also contains sweat glands.
- Blood vessels and nerves pass through the Dermis.
- Nerves transmit sensations of pain, hot and cold etc.
- Specialized nerve cells called Meissner’s and Vater-Pacini corpuscles also transmit feelings of touch and pressure.