Neurons, the Nervous System and the Endocrine System

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Across
  1. 1. this covers the axon of some neurons and helps speed neural impulses.
  2. 7. sends signals to calm the cell.
  3. 8. a pseudoscience about the measurement of bumps on the skull to predict mental traits.
  4. 10. this controls voluntary movements of skeletal muscles.
  5. 12. system chemically controls the various functions of cells, tissues, and organs.
  6. 16. body the cells support system.
  7. 17. a chemical messenger inside the body.
  8. 18. these produce and secrete hormones.
  9. 19. these carry incoming information from the sensory receptors to the brain and spinal cord.
  10. 21. these carry outgoing information from the brain and spinal cord to the muscles and glands.
  11. 22. controls self-regulated actions of internal organs and glands.
  12. 23. a chemical or drug that binds to receptors in the brain and increases the avalibility of a neurotransmitter.
  13. 24. these form junctions with other cells.
  14. 25. two kinds of neurons that connect the central nervous system to the body
Down
  1. 2. carry information away from the central to peripheral nervous system.
  2. 3. a chemical or drug that binds to the receptors in the brain that decreases the availability of a neurotransmitter.
  3. 4. nerves carry signals toward the central nervous system from the periphery.
  4. 5. a disease that attacks the myelin sheath of a nerve cell.
  5. 6. psychology A branch that concerns with the links between biology and behavior.
  6. 9. passes messages away from the cell body to other neurons, muscles and glands.
  7. 11. sends signals that stimulates the cell.
  8. 13. these receives messages from other cells.
  9. 14. within the brain and spinal cord that communicate internally and intervene between the sensory inputs and the motor outputs.
  10. 15. chemical messengers that are secreted directly into the blood.
  11. 20. A Nerve cell; The basic building block of the nervous system.