Structure
What is the epidermis?
top layer of skin
What is produced to protect the skin from sunlight?
melanin
What makes up the integumentary system?
skin, hair and nails
Skin and hair provide protection from the sun's?
UV rays
Your skin is home to what?
1000+ species of bacteria
What are fibers that carry sensations to and from the brain?
nerves
How do sebaceous glands take care of the skin?
by lubricating the skin and making it waterproof
Which is the thinnest layer of skin?
epidermis
What structure provides protection on the tips of fingers and toes?
nails
This comprises about a billion tons of dust in the earth’s atmosphere.
dead skin
What are two structures that help skin stretch and stay firm?
collagen and elastin
How does skin prevent damage to the muscles and bones?
the skin that covers and pads them
What is the layer of skin the provides elasticity?
dermis
The skin acts a storage place for which substances?
Water, fat, glucose and vitamin D
What skin structure may lack hair and sweat glands?
scar tissue
What is the thick layer of skin under the surface?
dermis
How does the skin control temperature?
by producing sweat that evaporates off of the skin
What is the deepest layer of skin?
hypodermis
How does the skin act as first line of defense?
by keeping microorganisms from entering the body
Where is your skin the thickest?
feet
What are the glands that produce sebum making the skin soft and waterproof?
sebaceous glands
What do the nerve endings sense?
danger
The hypodermis is also referred to as?
subcutaneous layer
What two ways does the skin regulate body temperature?
sweat and blood vessels
How many square feet of skin does an average adult have?
21 square feet