Cells vary in size as well as shape, but all cells are very small, and neurons are cells that are similar to other cells. Given these facts, which item found in the human body is smaller?  among the following options:
- the eyes
 - Epidermis
 - all matter
 - Fingernail.
 - Inches
 - Baby tooth.
 - Small eyelash.
 - Neuron.


 

        Neuron. 