The answer would be
Erythrocytes. Refer to the chart below for more information.
From the chart we can see the most abundant cell in human body is Erythrocytes, also known as red blood cells at 4.5 - 5.5 millions per mL.
Platelets, at 1.4-4.0 millions per mL.
White blood cells are 5,000-10,000 per mL. Neutrophils, lymphocytes and basophils are all included in this number.
I hope this helped!
