Chapter #17 Crossword

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Across
  1. 4. From circulatory system, an exotoxin that travels to its principal site of action, the neuromuscular junctions of skeletal muscles.
  2. 5. Human TSE/ sheep scrapie, kuru, and BSE.
  3. 8. Paralytic disease that involves invasion of motor neurons causes various degrees of flaccid (floppy) paralysis over a period of a few hours to several days.
  4. 10. Crops of lesions.
  5. 12. Meningoencephalitis/ commonly acquired by swimming in warm ponds and streams.
  6. 13. Meningeal infection.
  7. 15. Neurodegenerative disease with very long incubation periods (years) but rapid progressions once they begin/ prions cause these.
Down
  1. 1. Attack sensory brain cells/ infection demyelinizes certain parts of the cerebrum.
  2. 2. Restricted permeability of blood vessels in the brain/ prohibits most microorganisms from passing into the CNS.
  3. 3. Gram-negative/ transmitted by droplet aerosols or direct contact with secretions.
  4. 6. Slow, progressive zootonic disease characterized by a fatal encephalitis/ incubation period is 2 weeks to even years.
  5. 7. Causes the majority of bacterial pneumonias.
  6. 9. Tough casing of three membranes that encase the soft tissue of the brain and spinal cord.
  7. 11. Virus that attacks the nervous system/ spreads along the pathway of the spinal cord.
  8. 14. Powerful exotoxin that is a neurotoxin/ binds to target sites on peripheral motor neurons in the spinal cord and brain.