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Transcript of Integumentary System
The epidermis is the top layer of the skin.
The epidermis contains outer layers formed by many dead scalelike cells.
Melanin is the most important brown pigment.
Melanin protects the body from harmful solar radiation.
The amount of melanin produced determines whether you have light or dark skin.
The layer of cells below the dermis
The subcutaneous layer contains adipose (fat) and the major blood vessels of your skin.
The tissue in this layer also connects the skin to the muscles below it.
The innermost and the thickest layer of skin.
The hypodermis is mostly used for fat storage.
You have a new layer of skin every month.
Your nails grow faster in the warmth and sun.
You have 7 layer of flat, stacked cells.
The average amount of head hair is 120,000.
Your nails grow .5mm per week.
You will shed 40 lbs of skin in a lifetime.
The dermis is the second layer of skin which is a fibrous structure crisscrossed with a network of blood vessels, and nerves.
Sweat glands, sebaceous glands, and hair follicles are scattered profusely throughout the dermis.
What it does for the whole body
The integumentary system works with everything else and provides protection and it supports the conditions that your body needs to function.
It works with the other parts of the body to get the right nutrients and vitamins that your body needs.
The Integumentary System
Hair and Nails
Hair is on all of the body exept for
the palms, soles, lips and various parts of the external reproductive organs.
The nail is a tough protein whichcoversthe top of the finger.
Each nail is made up of a nail plate which is the top of the nail.
Nails protect the tissue from injuries.
Most fingernails are exposed to sunlight and air so they grow faster.