This printable word search puzzle on the topic of Human Body Systems contains 24 hidden words in a 24x24 letter grid. Words go horizontally, vertically, backwards, and diagonally. This word search is also available to download as a Microsoft Word document or a PDF.
INFLAMMATORY RESPONSE
RHEUMATOID ARTHRITIS
AUTOIMMUNE DISEASE
IMMUNE RESPONSE
KILLER T CELLS
HELPER T CELL
ANTIHISTAMINE
THYMUS GLAND
BONE MARROW
INTERFERON
ANTIBIOTIC
MACROPHAGE
LYMPHOCYTE
IMMUNOLOGY
ALLERGIES
LEUKOCYTE
PATHOGEN
ANTIBODY
VACCINE
ANTIGEN
T-CELL
B-CELL
LUPUS
FEVER