Immunity refresher

Question 1

Which cell is shown here? What does it do?

Answer 1

Neutrophil

• First inflammatory cell recruited to the scene in acute inflammation
• Phagocytose pathogens and release anti-microbial factors

Question 2

Which cell is shown here? What does it do?

Answer 2

Mast cell

• Tissue resident inflammatory cells
• Degranulate to enhance migration of other leucocytes to the area
• They release histamine and various cytokines

Question 3

Which cell is shown in abundance here? What does it do?

Answer 3

Eosinophil

• Immune cell with key role in response to parasitic infection
• Active participants in various immune responses
• Involved in allergic disease

Question 4

Which cell type is shown here? What does it do?

Answer 4

Basophil

• Circulating leucocyte
• Highly granular mononuclear cell
• Contain histamine
• Purported to share role with their tissue counterpart (mast cells)

Question 5

Which cell is shown here? What does it do?

Answer 5

Plasma cell

• Leucocyte capable of secreting antibodies
• Capable of class-switching