Across
- 4. Cell that engulfs and destroys pathogens
- 6. Liquid component of blood, containing antibodies and other proteins
- 8. Single-celled microorganisms, some of which can cause infections
- 10. Elevated body temperature as a response to infection
- 11. Oily substance on the skin's surface
- 13. Body's response to injury or infection, characterized by redness, heat, and swelling
- 14. Abnormal enlargement of a body part due to fluid accumulation
- 15. Microscopic organism capable of causing disease
Down
- 1. A means of communication within the body, often involving molecules like hormones or neurotransmitters
- 2. Slimy substance produced in the respiratory and digestive tracts to trap and eliminate pathogens
- 3. Ability of immune cells to distinguish between self and non-self cells
- 5. Large molecule composed of one or more chains of amino acids
- 7. A protective obstacle preventing the entry of harmful substances or organisms into the body
- 9. Compound released during allergic reactions, causing blood vessels to dilate
- 12. Thick, yellowish fluid consisting of dead white blood cells and tissue debris