Day 9 Vocabulary Assignment

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Across
  1. 4. he electric signal produced by a neuron when stimulated
  2. 6. a bacterium, virus, or other microorganism that can cause disease.
  3. 10. the immune system's way of protecting the body against an infectious disease.
  4. 13. chemical messengers that your body can't function without
  5. 14. the finger-like cells present on the end of a neuron
  6. 17. space between two neurons across which the impulse is transmitted by a neurotransmitter
  7. 18. a rapid sequence of changes in the voltage across a membrane
Down
  1. 1. a small colorless disk-shaped cell fragment without a nucleus, found in large numbers in blood and involved in clotting.
  2. 2. it behind the ears and are the second largest lobe
  3. 3. a colorless cell that circulates in the blood and body fluids and is involved in counteracting foreign substances and disease
  4. 5. The act of introducing a vaccine into the body to produce protection from a specific disease
  5. 7. responsible for sending and receiving neurotransmitters
  6. 8. insulating layer, or sheath that forms around nerves, including those in the brain and spinal cord
  7. 9. places where neurons connect and communicate with each other
  8. 11. white blood cell that surrounds and kills microorganisms, removes dead cells, and stimulates the action of other immune system cells.
  9. 12. any substance that causes the body to make an immune response against that substance.
  10. 15. A protein made by plasma cells in response to an antigen
  11. 16. electrical potential difference across the plasma membrane when the cell is in a non-excited state