Granulocytes

Definition

Granulocytes are a type of white blood cell characterized by the presence of granules in their cytoplasm. They play crucial roles in the innate immune response by targeting and eliminating pathogens.

5 Must Know Facts For Your Next Test

1. Granulocytes include neutrophils, eosinophils, and basophils.
2. Neutrophils are the most abundant granulocytes and are often first to respond to infection.
3. Eosinophils combat multicellular parasites and are involved in allergic reactions.
4. Basophils release histamine during inflammatory responses and play a role in allergic reactions.
5. Granulocytes have a multi-lobed nucleus and contain enzymes that digest microorganisms.

Review Questions

• Which types of cells are considered granulocytes?
• What is the primary function of neutrophils in the immune system?
• How do eosinophils contribute to the body's defense mechanisms?

Related terms

Neutrophil: A type of granulocyte that is highly effective at phagocytosing bacteria.

Eosinophil: A type of granulocyte involved in combating parasitic infections and participating in allergic responses.

Basophil: A type of granulocyte that releases histamine during inflammatory responses and plays a role in allergic reactions.