Hair Care & Services Questions & 100% Correct Answers- Latest Test | Graded A+ | Passed
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Course
Hair Care
Institution
Hair Care
Trichology
-:- The scientific study of hair, its diseases, and care.
Shaft
-:- The portion of the hair that projects above the skin. The three main layers of the
hair shaft are the cuticle, cortex, and the medulla.
Cuticle
-:- The outermost layer of the hair. It consists of a single, over...
✓ -:- A small, cone-shaped elevation located at the base of the hair follicle that fits
into the hair bulb.The dermal papilla contains the blood and nerve supply that
provides the nutrients needed for hair growth.
Arrector Pili
✓ -:- A minute, involuntary muscle fiber in the skin inserted in the base of the hair
follicle. Fear or cold causes it to contract, which makes the hair stand up straight,
resulting in "goose bumps".
Sebaceous Glands
✓ -:- The oil glands of the skin, connected to the hair follicles. The sebaceous glands
secrete an oily like substance called sebum, which lubricates the hair and the skin.
COHNS
✓ -:- Hair is exactly 91% protein. The protein it made up of long chains of amino
acids, which, in turn, are made up of elements. These elements are carbon (51%),
oxygen (21%), hydrogen (6%), nitrogen (17%), and sulfur (5%).
Porosity
3|Page | Grade A+| 2024/2025
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