_____ of cells are replaced by the body on a daily basis - ANSWER Billions
Atoms or molecules with unpaired electrons are called - ANSWER free radicals
True or false: Natural antioxidants are found in the skin. - ANSWER true
Which of the following causes premature aging of the skin? - ANSWER
smoking, tanning, drugs, alchol
, Identify the greatest aging effect on the skin: - ANSWER UV rays
_____ are called the burning rays. - ANSWER UVB
In order to block UVA and UVB rays, sunscreens must be: - ANSWER broad
spectrum
Estrogen protects the skin by: - ANSWER being anti-inflammatory, repairing
skin tissue, and having antioxidant properties
An esthetician's primary role is to _____ and nourish the skin. - ANSWER
preserve, protect
What is the average square footage and weight of an adult's skin? - ANSWER
22 sq ft; 8-10 lbs
What does TEWL stand for? - ANSWER transepidermal water loss
The most amazing feature of the skin is its ability to: - ANSWER heal itself
Which glands excrete perspiration and detoxify the body? - ANSWER
sudoriferous
Skin absorbs______ and expels_____ - ANSWER oxygen, carbon dioxide
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