For thousands of years our eyes were the best at identifying objects from seeing dangerous animals to bacteria under a microscope, but with the advancements in object detection techniques the machine is far better at it than any human.
- Neutrophil
- Eosinophil
- Monocyte
- Lymphocyte
These can further be classified into Mononuclear (Lymphocyte + Monocyte) vs Polynuclear (Neutrophil + Eosinophil).