Across
- 2. the state or quality of being resistant to a particular infectious disease or pathogen
- 3. the organ primarily responsible for the production and maturation of immune cells
- 8. a bacterium, virus, or other microorganism that can cause disease.
Down
- 1. proteins that protect you when an unwanted substance enters your body
- 4. A type of white blood cell that surrounds and kills microorganisms, removes dead cells, and stimulates the action of other immune system cells
- 5. an abdominal organ involved in the production and removal of blood cells
- 6. each of a number of small swellings in the lymphatic system where lymph is filtered and lymphocytes are formed.
- 7. a substance, often a protein, that triggers an immune response in the body