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There is an immense size variation in vertebrate red blood cells, as well as a correlation between cell and nucleus size. Mammalian red blood cells, w
There is an immense size variation in vertebrate red blood cells, as well as a correlation between cell and nucleus size. Mammalian red blood cells, which do not contain nuclei, are considerably smaller than those of most other vertebrates.
Mature red blood cells of birds have a nucleus, however in the blood of adult females of penguin Pygoscelis papua enucleated red blood cells (B) have
Mature red blood cells of birds have a nucleus, however in the blood of adult females of penguin Pygoscelis papua enucleated red blood cells (B) have been observed, but with very low frequency.
Scanning electron micrograph of blood cells. From left to right: human red blood cell, thrombocyte (platelet), leukocyte.
Scanning electron micrograph of blood cells. From left to right: human red blood cell, thrombocyte (platelet), leukocyte.
Two drops of blood are shown with a bright red oxygenated drop on the left and a darker red deoxygenated drop on the right.
Two drops of blood are shown with a bright red oxygenated drop on the left and a darker red deoxygenated drop on the right.
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Red and white human blood cells as seen under a microscope using a blue slide stain
Red and white human blood cells as seen under a microscope using a blue slide stain
The darker red blood syringes have deoxygenated blood, whereas the brighter red have oxygenated blood.
The darker red blood syringes have deoxygenated blood, whereas the brighter red have oxygenated blood.
Artificially colored electron micrograph of blood cells. From left to right: erythrocyte, thrombocyte, leukocyte.
Artificially colored electron micrograph of blood cells. From left to right: erythrocyte, thrombocyte, leukocyte.