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Integumentary System

The largest organ of the body

Functions of the Integumentary System

Protection, temperature regulation, control touch, Sythesis of Vitamin D

Organs of the Integumentary System

The Epidermis
The Dermis


The level below the dermis


without vessels (does not bleed)


without nerves (hair, nails)


Fine, thin layers of skin. We have approximately 4-5 layers




Produced by melanocytes, provides pigmentation


Larger section of the Integumentary system made of collagen and elastin


Where the vessels and nerves live

Sudiferous glands

sweat glands, water

Sebacious glands

fat glands, oil

pilomotor muscles

muscles that move the hair follicles (goose bumps)

Subcutaneous layer

Requlates temperature and moisture, contains fat, water and sodium. Located below the skin

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