The Five Major Functions of the Skin (Integumentary System)

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Vitamin D

The skin produces and absorbs vitamin D in conjunction with ultraviolet rays from the sun, which activate a vitamin D precursor present in the skin.

Temperature Regulation

The skin regulates body temperature. Cooling of the body occurs through sweating.

Sensations

The skin transmits sensations through nerve receptors, which are are sensitive to pain, temperature, touch, and pressure.

What is another name for the skin?

Integument or Integumentary System.

What are the Five major function of the Skin?

Protection, Temperature Regulation, Secretion of Sebum, Sensations, and Vitamin D absorption.

Protection

Protects underlying tissues from injury by preventing the passage of microorganisms.

Secreting Sebum

Sebum is an oily substance that softens and lubricates the hair and skin. It prevents the hair from becoming brittle and it decreases water loss from the skin. It also has a bactericidal(Bacteria-killing) action.

What is the Largest Organ in the body?

The Skin.


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