What does this number measure?
A flexible biconcave disc adapted to carrying oxygen. Displayed dimension: mean diameter.
Compare the stated dimensions
The comparison uses the number in each fact sheet: altitude, height, diameter, length or distance, depending on the reference. Two values in metres do not necessarily describe the same property.
Source and limitations
Dimension checked in a primary source that was consulted.
Human red blood cell: a biconcave disc seen at an angle, with a closed central depression. Morphological model with interpreted textures and colours; mean diameter.