Immune System Crossword Puzzle

This printable crossword puzzle on the topic of Human Body Systems has 10 clues. Answers range from 8 to 17 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

What type of disease is caused when a pathogen is passed from one organism to another?
What agents are the cause of infectious diseases?
What is the source of the pathogen in the environment?
Which type of immunity only protects you from certain diseases?
What are proteins that specifically react with foreign antigens?
Substance foreign to body that causes a specific response is__?
Lymphocyte that activates antibody secretion in B cells and another type of T cells is__?
Chemicals released when cytotoxic T cells are activated and pathogens are destroyed are__?
The body’s first response to an invasion by a pathogen is the__?
Long-living cells exposed to the antigen during the primary immune response are__?