1 / 4

Human body

Human body. Hermann Juurik. Why do people have hair ?. Hair isn’t just for looks. The hair on our heads keeps us warm and protects against the sun’s harmful ultraviolet rays .

quin-king
Download Presentation

Human body

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Humanbody Hermann Juurik

  2. Whydopeoplehavehair? • Hairisn’t just for looks. Thehair on ourheadskeepsuswarm and protectsagainstthesun’sharmfulultravioletrays. • the part beneath the skin, called the hair follicle or when pulled from the skin, called the bulb. This organ is located in the dermis and maintains stem cells which not only re-grow the hair after it falls out, but also are recruited to regrow skin after a wound

  3. All natural hair colors are the result of two types of hair pigment. Both of these pigments are melanin types • Hair grows everywhere on the external body • Humans seem hairless not because of a lack of follicles but because of the predominance of vellus fibers which are thinner, shorter, and more transparent than terminal fibers

  4. References www.google.comhttp://en.wikipedia.org/wiki/Hair

More Related