The Immune System Word Search
The Immune System, as a word search. 12 words drawn from the parts and systems of the human body sit hidden in a 15×15 letter grid, running in every direction. Drag across a word to claim it, and clear the board to finish.
Words to find: IMMUNE, LYMPH, SPLEEN, THYMUS, MARROW, TISSUE, ANTIBODY, ANTIGEN, PATHOGEN, MACROPHAGE, NEUTROPHIL, BASOPHIL.
The timer only feeds a small speed bonus, so take as long as you need, and spend a hint if a word will not surface.
The Immune System word list, defined
- IMMUNE /ɪˈmjuːn/ · adjective
- Not affected by or resistant to a particular disease, harmful substance, influence, or other threat. In figurative use, it means unaffected by or indifferent to something such as criticism, pressure, or temptation. Related: resistant, protected, exempt, insusceptible.
- LYMPH /lɪmf/ · noun
- A clear, usually colourless fluid containing lymphocytes and other immune cells that circulates through the lymphatic vessels and eventually enters the bloodstream. In botany, the term can also denote a watery fluid within plant tissues. Related: lymphatic fluid.
- SPLEEN /spliːn/ · noun
- The spleen is a small organ in the upper-left abdomen that filters blood, removes old blood cells, and helps support the immune system. By extension, “spleen” refers to a state of bitter anger, resentment, or hostility. Related: milt, resentment, ill will, bitterness.
- THYMUS /ˈθaɪməs/ · noun
- A small, two-lobed gland situated behind the breastbone in the upper chest. It is a primary lymphoid organ involved in the maturation of T lymphocytes and is most active in childhood, gradually shrinking after puberty.
- MARROW /ˈmæroʊ/ · noun
- The soft, fatty tissue found inside bones. In figurative use, marrow refers to the essential core, strength, or vitality of a person or thing. Related: pith, pulp, essence, core.
- TISSUE /ˈtɪʃuː/ · noun
- In biology, tissue is a group of similar cells and the material surrounding them that performs a particular function. In everyday usage, it means a thin, soft sheet of paper, especially one used for wiping the nose or other surfaces. Related: membrane, flesh, cellular material, paper.
- ANTIBODY /ˈæntɪbɒdi/ · noun
- A protein produced by the immune system in response to a foreign substance (an antigen), which binds specifically to that substance to help neutralize or destroy it. Related: immunoglobulin, immune protein.
- ANTIGEN /ˈæntɪdʒən/ · noun
- A substance, typically a protein or polysaccharide, that the immune system recognizes as foreign and that triggers the production of antibodies or an immune response. Related: immunogen, allergen, pathogen, hapten.
- PATHOGEN /ˈpæθədʒən/ · noun
- An organism or other agent that can cause disease, especially a microorganism such as a bacterium, virus, fungus, or parasite. Related: infective agent, disease-causing organism, microbe, germ.
- MACROPHAGE /ˈmæk.rəˌfɑːdʒ/ · noun
- A large immune cell that engulfs and digests foreign particles, microorganisms, and cellular debris. Macrophages are found in tissues and can present antigens to other cells of the immune system. Related: histiocyte, phagocyte.
- NEUTROPHIL /ˈnuːtrəfɪl/ · noun
- A type of white blood cell that is the most abundant member of the granulocyte family. Neutrophils engulf and destroy bacteria and other microorganisms through phagocytosis, and they also contribute to inflammation. Related: neutrophilic leukocyte, polymorphonuclear leukocyte, granulocyte.
- BASOPHIL /ˈbeɪsəfɪl/ · noun
- A type of white blood cell (granulocyte) characterized by granules that stain readily with basic dyes; basophils play a role in inflammatory and allergic responses by releasing histamine and other mediators. Related: basophilic leukocyte, basophilic granulocyte, polymorphonuclear leukocyte, granulocyte.
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