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[[Image:Thrombocyte.jpg|150px|thumb|right|'''Blood taking from the ventral tail vein''' (Copyright © RVC and its licensors, Sean Bobbit, Sue Evans, Andrew Devare and Claire Moore. All rights reserved)]]
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[[Image:Monocyte.jpg|150px|thumb|right|'''Blood taking from the ventral tail vein''' (Copyright © RVC and its licensors, Sean Bobbit, Sue Evans, Andrew Devare and Claire Moore. All rights reserved)]]
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[[Image:Heterophil.jpg|150px|thumb|right|'''Blood taking from the ventral tail vein''' (Copyright © RVC and its licensors, Sean Bobbit, Sue Evans, Andrew Devare and Claire Moore. All rights reserved)]]
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[[Image:Lizard_eosinophil.jpg|150px|thumb|right|'''Blood taking from the ventral tail vein''' (Copyright © RVC and its licensors, Sean Bobbit, Sue Evans, Andrew Devare and Claire Moore. All rights reserved)]]
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[[Image:Basophil.jpg|150px|thumb|right|'''Blood taking from the ventral tail vein''' (Copyright © RVC and its licensors, Sean Bobbit, Sue Evans, Andrew Devare and Claire Moore. All rights reserved)]]
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[[Image:Lymphocyte.jpg|150px|thumb|right|'''Blood taking from the ventral tail vein''' (Copyright © RVC and its licensors, Sean Bobbit, Sue Evans, Andrew Devare and Claire Moore. All rights reserved)]]
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[[Image:Azurophil.jpg|150px|thumb|right|'''Blood taking from the ventral tail vein''' (Copyright © RVC and its licensors, Sean Bobbit, Sue Evans, Andrew Devare and Claire Moore. All rights reserved)]]
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Blood (plasma and cells) is approximately 6% of the body weight of snakes and the normal PCV of a snake is about 0.20 to 0.30 l/l (20-30%). Blood cells form in the bone marrow and spleen, and early in life, the liver.
Blood (plasma and cells) is approximately 6% of the body weight of snakes and the normal PCV of a snake is about 0.20 to 0.30 l/l (20-30%). Blood cells form in the bone marrow and spleen, and early in life, the liver.
==Identification==
==Identification==