Unit 16/17: Body Systems Vocabulary Crossword

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Across
  1. 3. a bacterium, virus, or other microorganism that can cause disease
  2. 5. process that the egg travels down the fallopian tube where it may be met by a sperm and become fertilized
  3. 9. immunity against a specific antigen or disease; t-cells and b-cells (memory cells)
  4. 12. generalized responses to pathogen infection - they do not target a specific cell type
  5. 13. a substance used to stimulate the production of antibodies and provide immunity against one or several diseases
  6. 14. force exerted by the blood against the vessel wall. Blood pressure is highest in arteries and gradually decreases as it passes through arterioles, capillaries, and veins
Down
  1. 1. the attachment of the fertilized egg or blastocyst to the wall of the uterus at the start of pregnancy, often delayed in some mammals by several months
  2. 2. used in the treatment and prevention of bacterial infection
  3. 4. the fusion of an egg and a sperm to form a zygote
  4. 6. fertilized egg; union of 2 gametes
  5. 7. later stage of development of a baby, from the end of the 8th week to the moment of birth
  6. 8. small infectious agent that replicates only inside the living cells of other organisms
  7. 10. a toxin or other foreign substance that induces an immune response in the body, especially the production of antibodies
  8. 11. the first stage of development of a baby from the moment of fertilization until the end of the 8th week of gestation