In humans, mature red blood cells are flexible biconcave disks . They lack a cell nucleus (which is expelled during development) and organelles, to accommodate maximum space for hemoglobin; they can be viewed as sacks of hemoglobin, with a plasma membrane as the sack.
Red blood cells are microscopic and have the shape of a flat disk or doughnut, which is round with an indentation in the center, but it isn't hollow. Red blood ... |
12 сент. 2022 г. · Healthy RBCs have a biconcave shape, i.e., they appear as round disks with a diameter of ≈ 7 μm and a central dimple under the microscope (as ... |
Red blood cells are unique biconcave cells (round with a flat, indented center). Their lack of nuclei makes them so flexible that they can pass through ... |
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