Blood cells through the microscope. This image is a combination of what can be seen through the microscope, and the artists impression of blood cells and surrounding structures and organisms.

Licence: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)

Credit: Blood cells through the microscope. This image is a combination of what can be seen through the microscope, and the artists impression of blood cells and surrounding structures and organisms. Odra Noel. Source: Wellcome Collection.