Arugula is also a good source of vitamin A, which is important for maintaining good vision, cell growth and immune function, with each serving providing 475 international units of vitamin A, or 10 percent of the recommended daily amount.
Neutrophils are white blood cells that serve as important phagocytes, or garbage collectors. There are about 100 billion of these cells produced every day in the bone marrow and they account for about 70% of the white blood cells in circulation in your body.
1 White blood cell (WBC, leukocyte) count. 2  White blood cells protect the body against infection. 3  If an infection develops, white blood cells attack and destroy the bacteria, virus, or other organism causing it. 4  White blood cells are bigger than red blood cells but fewer in number. CBC test usually includes: 1  White blood cell (WBC, leukocyte) count. 2  White blood cells protect the body against infection. 3  If an infection develops, white blood cells attack and destroy the bacteria, virus, or other organism causing it. 4  White blood cells are bigger than red blood cells but fewer in number.