hair and nails.
2007-06-24 22:38:52
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answer #1
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answered by Papilio paris 5
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Sorry to contradict Labsci, but cartilage does not have a blood supply - it is avascular!
He is correct that the cornea is avascular though - and so is the eye lens. The lens gets it's nutrients from the aqueous humour (the fluid in the front part of the eye)
As other have said: hair and nails do not have a blood supply.
There are two physiological barriers (the blood-brain barrier, and the blood-aqueous or blood-eye barrier) keeping blood out of your brain and eye.
Blood vessels do deeply penetrate the brain though, it is just that the walls of the brain's blood vessels are specially adapted to stop just about everything except oxygen and nutrients crossing-over.
However - I suppose a sarcastic answer to your question would be that - unless you have burst a blood vessel - the only parts of your body that actually contain blood *are* the blood vessels ;-)
2007-06-25 10:48:13
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answer #2
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answered by gribbling 7
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The Epidermis of the skin contains no blood. So anything relating to this layer of skin will also contain no blood, such as hair and nails (which are dried up keratin).
Everywhere else there is some blood. One of your answerers said in the eye. Well then why do we get "bloodshot" eyes then?
Someone else answered organs. Are you kidding me? Please tell me you are not going into medicine for I certainly wouldn't want to be your patient!
Blood will be contained everywhere for it is what supplies the nutrients to the living tissues.
Tendons and Ligaments are avascular, meaning without vessels, but there is still blood in the area. Not having vessels is why tendons and ligaments take so much longer to heal than every thing else when injured.
2007-06-25 12:23:02
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answer #3
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answered by emanon1213 3
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The only part of the body which is alive (as opposed to dead protein such as hair and nails), but does not need a blood supply is the cornea of the eye. it gets oxygen from the air, and nutrients from tears and from the aqueous humor within the eye. The reason is obvious, if we had blood capillaries running across the cornea, it would obscure our vision. Bone and cartilage have a blood supply.
2007-06-25 07:29:47
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answer #4
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answered by Labsci 7
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Umm, In which part of our body doesn't contain blood.This is a good question. Let me explans: The body is formed from system of organ, and organ is formed from same functions tissue, tissue is form from cell. The cell need foods. and how they get nutrients? Via air? ,, all the cell get nutrients from the blood that supply them via cappilary blood vessel.About of 90 percent in body we can found blood, but where we can't found? : nail and Hair is and organ called Integument system, the organ which cover the body to protect internal organs and defense against germs. Initialy it supply by blood and then it derivative to hair and nail which we can't found blood.
The other organ that blood a little involved in the system is Nervous System, the brain, spinal cord. it supply by a yellow clear liquid substans call CSF-cerebro spinal fluid, which mainly about nutritions and defense against germ instead of blood.
2007-06-25 06:10:29
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answer #5
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answered by BoomzLab 2
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It may sound silly but all our internal organ cavities and our nails and hair.
2007-06-25 05:37:33
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answer #6
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answered by Mock Turtle 6
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Hair, nail, teeth,bones and cartilage
2007-06-25 06:13:20
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answer #7
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answered by joe dalton 1
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the eye
2007-06-25 05:37:42
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answer #8
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answered by alpenliebe 2
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