Immune System

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Across
  1. 4. the ability to resist the pathogens that cause a disease
  2. 6. helps the body fight pathogens and maintain its fluid balance?
  3. 7. the preparation of dead or weakened pathogens that go into the body to cause immune responses
  4. 8. substances send the immune system into action
Down
  1. 1. the combination of body defenses made up of cells, tissues, and organs that fight pathogens
  2. 2. the body releases in response to antigens
  3. 3. the body’s response to injury or disease, resulting in a condition of swelling, pain, and redness
  4. 5. special white blood cells that are called B and T cells?