Immune System

What does the Immune System include?

Thymus Gland

Bone Marrow

Spleen

Disease

What are some examples of Pathogens?

How does the Immune System work?

1st Line of Defense

2nd Line of Defense

3rd Line of Defense

Macrophage

Helper T Cells

Antibodies

B Cells

Antigens

Killer T Cells

Memory T Cells

What are the types of Immunity?

HIV

How does the Immune System respond to HIV?

AIDS

How do you know a person has AIDS?

Opportunistic Illness

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