Insects developed a hard skin which also serves as a skeleton. Common characteristics of mammals include sebum and hair. Humans could not survive without skin.
The epidermis, dermis, and hypodermis are the three levels of skin. Millions of cells form daily and rise to the surface, protecting our bodies. Sweat regulates our body temperature.
Ultraviolet rays help produce vitamin D in our skin. Excessive radiation can cause cancer and sun burn; melanin absorbs UV rays. Blood can concentrate at vital organs or flow throughout the body.
Skin acts like a gigantic transmitter, reacting to different stimuli and sending information to our brain. Pain warns us that a part of our body is suffering from aggression.
The epidermis, dermis, and hypodermis are the three levels of skin; millions of cells form daily and rise to the surface, protecting our bodies. Melanin absorbs UV rays. Skin acts like a gigantic transmitter.
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The skin is the largest organ of the human body. Learn the characteristics and structure of skin, how it controls temperature, how it receives tactile information, and more!
Length: 17 minutes
Copyright date: ©2013
Prices include public performance rights.
Not available to Home Video, Dealer and Publisher customers.
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