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12 Cards in this Set
- Front
- Back
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Describe Vellus Hair. |
Short, fine, unpigmented, and downy hair that appears on the body. Almost never has a medulla. |
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Anagen Phase |
The growth phase of new hair.
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Catagen Phase |
The transition period between the growth and resting phases. |
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Telogen Phase |
The resting phase. |
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What is the average growth of healthy scalp hair per month? |
1/2 inch (1.25 cm.) |
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What percentage of scalp hair is in the catagen phase at any one time? |
Less than 1 percent
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How long does the Anagen Phase generally last? |
3 to 5 years. |
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According to recent measurements, the average rate of hair loss is_______hairs per day. |
35 to 40 |
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Abnormal hair loss is called______. |
Alopecia |
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In men, androgenic alopecia is known as______and usually progresses to the familiar to the familiar horseshoe-shaped fringe of hair. |
Male pattern baldness |
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What is alopecia areata? |
An autoimmune disorder that causes the affected hair follicles to be mistakenly attacked by a person's own immune system. |
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What are the only two products that have been proven to stimulate hair growth and are approved by the Food and Drug Administration (FDA) for sale in the United States? |
Minoxidil and Finasteride |
