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Which structures contain keratin?

Mainly the hair and fingernails.


What are hair nerves?

Hair is dead cells and actually has no nerves. When you pull on your hair, it is actually the living nerves in your scalp which register it.


Is there any part of the human body that does not have a nerve?

Hair, fingernails and toenails, which can be cut without feeling any pain (or sensation of any kind) do not contain nerves, although the roots do contain nerves, so you do feel pain if these are ripped out. Callouses also do not contain nerves.


When you have a haircut it is not painful this is because?

Hair does not have blood vessels or nerves running through it. Also hair is made from basically the same thing as fingernails or toenails and it doesn't hurt to cut nails!


What cell makes hair and fingernails grow?

A keratinocyte is the cell from which hair and fingernails are derived.


Do sheep and bull horns have nerves Or if not is it like human hair and nails with no nerves?

No nerves, but not quite like human hair either. Parts of the horns have a blood supply.


Is unusually hard fingernails a sign of pregnancy?

I dont think so. I have never heard of anything like that before. I do know that when you are pregnant and taking pre-natal vitamins your hair is shinier and your fingernails are stronger.


What a fingernail contain cilia?

Fingernails do not contain cilia. Cilia are microscopic hair-like structures found on the surface of some cells, primarily involved in movement or sensation. Fingernails are made of keratin, a tough protein that protects the tips of fingers and toes, and they do not have the cellular structures associated with cilia.


Does your hair have nerves?

no your hair does not have nerves or it would hurt to get a haircut


Can you pluck hair with fingernails?

You can, but tweezers are better.


What is the protein found in fingernails and hair?

Keratin.


Are teeth hair?

No. no, but fingernails are. They are keratin, protein.