How does hair grow? - PowerPoint PPT Presentation

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How does hair grow?

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How does hair grow?
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How does hair grow?

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  1. How does hair grow?

  2. Is hair dead or alive? A lot of people ask that but the truth is that hair is dead and that's why it doesn't hurt when you cut it, but the reason it does hurt when you pull it is because your also pulling the stem and that’s where the hair grows from.

  3. Zoom in

  4. The hair string

  5. The hair string Skin around hair and skull

  6. The hair string Skin around hair and skull Hair string

  7. The hair string Sebaceous Glands Skin around hair and skull Hair string

  8. The hair string Sebaceous Glands Skin around hair and skull Hair string Dermale papilla

  9. The hair string Sebaceous Glands Skin around hair and skull Hair string Hair shaft Dermale papilla

  10. The hair string Sebaceous Glands Skin around hair and skull Hair string Hair shaft Sebaceous gland Dermale papilla

  11. The hair string Sebaceous Glands Skin around hair and skull Hair string Hair shaft Sebaceous gland Papilla's Dermale papilla

  12. The hair string Sebaceous Glands Skin around hair and skull Hair string Hair shaft Sebaceous gland Papilla's Dermale papilla

  13. The hair string Sebaceous Glands Skin around hair and skull Hair string Hair shaft Sebaceous gland Papilla's Dermale papilla

  14. The hair string Sebaceous Glands Skin around hair and skull Hair string Hair shaft Sebaceous gland Papilla's Dermale papilla

  15. The hair string Sebaceous Glands Skin around hair and skull Hair string Hair shaft Sebaceous gland Papilla's Dermale papilla

  16. The hair string Sebaceous Glands Skin around hair and skull Hair string Hair shaft Sebaceous gland Papilla's Dermale papilla

  17. The hair string Sebaceous Glands Skin around hair and skull Hair string Hair shaft Sebaceous gland Papilla's Dermale papilla

  18. The hair string Sebaceous Glands Skin around hair and skull Hair string Hair shaft Sebaceous gland Papilla's Dermale papilla

  19. The hair string Sebaceous Glands Skin around hair and skull Hair string Hair shaft Sebaceous gland Papilla's Dermale papilla

  20. The hair string Sebaceous Glands Skin around hair and skull Hair string Hair shaft Sebaceous gland Papilla's Dermale papilla

  21. The hair string Sebaceous Glands Skin around hair and skull Hair string Hair shaft Sebaceous gland Papilla's Dermale papilla

  22. The hair string Sebaceous Glands Skin around hair and skull Hair string Hair shaft Sebaceous gland Papilla's Dermale papilla

  23. The hair string Sebaceous Glands Skin around hair and skull Hair string Hair shaft Sebaceous gland Papilla's Dermale papilla

  24. SO THE HAIR GROWS ON AND ON SO SLOWLY THAT YOU would never notice it because it happens at the same time as falling out, if you ever noticed. But the reason it still grows long is because it grows faster than it falling out. even though it falls out at the same time as growing.

  25. Now the reason that people have different colour hair is because of a little something called....

  26. GENES!!!

  27. The papilla is a very important part of your head, it is at the very bottom that helps the hair grow because it contains the blood supply.