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Are blood platelets cells?

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Are blood platelets cells?

Postby defensivor » Sat Apr 30, 2005 12:51 pm

As the topic...Do the blood platelet can be a cell?
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Postby Tamsicle » Sun May 01, 2005 6:47 am

I think I speak for everyone when I say..."huh?"

Do you mean 'are blood platelets cells?'?
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Postby mith » Sun May 01, 2005 4:31 pm

Are you asking whether it's a cell or not? if so, the answer is yes!!
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Postby Poison » Sun May 01, 2005 6:09 pm

Correct me if I'm wrong but, platelets are cell fragments , not cells. As much as I remember they are particles of megakaryocytes (I'm not sure about the spelling) .
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Postby mith » Sun May 01, 2005 7:04 pm

They are fragmented cells but some sources regard them as cells.
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Postby Poison » Mon May 02, 2005 4:56 pm

Hmm.. maybe. But the term 'cell fragments' sounds more logical to me. I don't know why... :roll:
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Postby mith » Mon May 02, 2005 8:15 pm

I think defensivor actually posed a good question then, since we know the definition of a cell should platelets or anucleated cells(red-blood cells) be exceptions?
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Postby Jelanen » Mon May 02, 2005 10:42 pm

Platlets have always been considered cell fragments in my education... At least erythrocytes were at one point nucleated, platelets can't say the same.
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Postby mith » Tue May 03, 2005 12:22 am

Well I stand corrected, it's a cell fragment.
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Postby MrMistery » Tue May 03, 2005 6:40 pm

I have lots of bio books and most simply name them cell fragments. I have a book that talks about tromocytes at frogs(which we know are cells) and calls them blood platlets... This is wrong... But if you are ever asked if blood platlets are cells at anything other than mamals you should say yes(remember, IT IS GENERALLY ACCEPTED THAT ONLY MAMALS HAVE BLOOD PLATLETS)
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Postby b_d_41501 » Tue Jun 14, 2005 4:19 pm

My biology book says, "a small enucleated blood cell important in blood clotting; derived from large cells in the bone marrow".
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Postby MrMistery » Tue Jun 14, 2005 7:46 pm

Different doctors, different treatments... :lol: :lol: Cell fragments is best.. Savs a lot of arguing and trouble
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