Types of Leukocytes

Granulocytes

Neutrophils, Eosinophils, and Basophils

Agranulocytes

Lymphocytes and Monocytes

Neutrophils

• most numerous white blood cells (50-70%)

Which one is multi-lobed nucleus?

Neutrophils

Which one attracts to sites of inflammation?

Neutrophils

Use phagocytes to engulf bacteria?

Neutrophils

Eosinophils

2-4% of white blood cells

Two-lobed nucleus

Eosinophils

Use enzymes to digest parasitic worms (ex. tapeworms and flukes)

Eosinophils

Basophils

* rarest white blood cells (less than 1%)

Which one releases histamine: an inflammatory chemical that attracts other white blood cells to sit of infection?

Basophils

Lymphocytes

• 25% of white blood cells

What is the 2nd most numerous white blood cells?

Lymphocytes

Which one has a large nucleus that takes up most of the cell? Also found in lymph nodes

Lymphocytes

What are the two types of lymphocytes?

• T cells

• B cells

Monocytes

• 3-8% of white blood cells

Largest leukocytes

Monocytes

What have a U-shaped nucleus?

Monocytes

Which one becomes macrophages: phagocytes that engulf viruses and other pathogens?

Monocytes