Use the blue word bank below to identify each of the following (2 points)

antibody antigen circulatory system digestive system
immune system immunity integumentary system lymphatic system
pathogen respiratory system skin venom
white blood cell

1. It is made up of white and red blood cells and platelets and carries oxygen to organs around the body.

circulatory system

2. This is developed by the body’s defense system to destroy pathogens.



3. Resistance to a particular disease.



4. A wall-like, first line of defense against disease, illness and pathogens.



5. It traps pathogens and other foreign invaders in mucus and cilia.



6. This is a part of a pathogen that signals the body’s immune system to respond.



7. The body system to which skin belongs.



8. It can destroy pathogens using hydrochloric acid.



9. Bacteria, viruses and parasites are examples of these invaders.



10. It contains white blood cells and has nodes that clean the fluid inside the system by filtering out pathogens, cancer cells and other particles.



11. This is another word for poison or toxin, often used when it comes from an animal.



12. They are contained in both the circulatory and lymphatic systems and fight disease.



13. This is your body’s combined defense system against infection, illness and disease.