| During thermolysis of blood the erythrocytes transition from biconcave discs to spherocytes. |
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| Under high power unstained red blood cells appear as pale, homogeneous, biconcave discs with no nucleus. |
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| This was not an artifact, as those erythrocytes fixed within the blood vessels retained a normal biconcave shape. |
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| Ribs are straight or slightly biconcave and fade on the ventral surface where they merge into the lateral keel. |
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| In man and in all mammals, erythrocytes are devoid of a nucleus and have the shape of a biconcave lens. |
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| The superior biconcave face of the plate marries perfectly the convexity of condyles of the femoral part. |
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| They are small biconcave disks without a nucleus and get their red colour from an iron-containing protein called hemoglobin. |
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| The seventh cervical vertebra is biconcave and is well preserved. |
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| The biconcave shape of the cell allows oxygen exchange at a constant rate over the largest possible area. |
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| Genetic defects of the red cell membrane may cause the red cells to assume a spherical rather than a biconcave shape, or alter their configuration to an elliptical form. |
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| The virions were enveloped and measured approximately 300 nm in length and had brick-shaped nucleocapsids with a biconcave core. |
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| Red cells are approximately 7.8 micrometres in diameter and have the form of biconcave disks, a shape that provides a large surface-to-volume ratio. |
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| In the red cells of the mammalians, the lack of nucleus allows more room for hemoglobin and the biconcave shape of these cells raises the surface and cytoplasmic volume ratio. |
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| Slight anisochromasia is normal due to the biconcave shape of erythrocytes, but if excessive, it may indicate iron deficiency. |
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| The Mesozoic Lepidosteidae, again, have, at most, biconcave vertebrae, while the existing Lepidosteus has Salamandroid, opisthocoelous, vertebrae. |
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