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6th grade - Test 3 review health
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the tough outer layer of the eye
sclera
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transportation tubes for lymph
lymph vessels
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bacteria and viruses that cause diseases
pathogens
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the enzyme that kills bacteria in your tears and perspiration
lysozyme
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the largest organ of the skin
skin
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enlarged bunches of lymphatic tissue
lymph nodes
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the hollow space in your skull that surrounds each eye
eye socket
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the special kind of skin cells that line your mouth, nose, and throat
mucuous membrane
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the center of the iris through which light passes
pupil
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the hairlike projections that line the mucous membrane
cilia
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becomes thicker when you look at close objects
lens
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the largest lymphatic organ
spleen
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carries messages to your brain causing you to hear
auditory nerve
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the body's ability to resist a particular disease
immunity
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white blood cells inside lymph nodes
lymphocytes
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