Immune System . Review. Identify the 3 parts of the 1 st Line of Defence. What is the largest lymphoid organ?. What are the 5 parts that make up the 2 nd line of defense ?. These stimulate phagocytosis and decreases pathogens ability to multiply.
Name the 3 different primary areas where lymph nodes can be found. (bonus mark for proper term)
When an irritant is caused by a pathogen, the inflammation is called _________________
Identify 2 substances in the 2nd line of defence that fight against viruses.
Identify 2 substances in the 2nd line of defence that fight against bacteria