Psychology Chapter 2

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Across
  1. 3. an imaging technique used to study the brain to pinpoint injuries and brain deterioration
  2. 5. a measuring technique used to study brain structure and activity
  3. 7. the long, think cells of nerve tissue along which messages travel to and from the brain
  4. 9. the brain and spinal cord
  5. 13. the expressions of a particular trait in an organism
  6. 16. descended from ancestors with similar genetics
  7. 17. the genetic transmission of characteristics from parents to their offspring
  8. 18. chemical substances that carry messages through the body in blood
  9. 19. descended from ancestors with dissimilar genetics
  10. 21. a machine used to record the electrical activity of large portions of the brain
  11. 22. an imaging technique used to see which brain areas are being activated while performing tasks
  12. 23. twins who come from two different eggs fertilized by two different sperm
  13. 24. the part of the peripheral nervous system that controls internal biological functions
  14. 25. the chemicals released by neurons which determine the rate at which other neurons fire
Down
  1. 1. twins who come from one fertilized egg, same heredity
  2. 2. a part of the brains central core, responsible for sensory and motor control and the processing of thinking and language
  3. 4. the gap that exists between individual nerve cells
  4. 5. a small part of the brain above the pons that arouses the brain, integrates sensory info, and relays it upward
  5. 6. a part of the brain located at the rear base of the skull that is involved in the basic processes of life
  6. 8. the set of genes in an organism
  7. 10. the different regions into which the cerebral cortex is divided
  8. 11. nerves that run up and down the length of the back and transmit most messages between the body and brain
  9. 12. chemical communication system, using hormones, by which messages are sent through the bloodstream
  10. 13. the center of control of the endocrine system that secretes a large number of hormones
  11. 14. the basic building blocks of heredity
  12. 15. the part of the peripheral nervous system that controls voluntary movement of skeletal muscles
  13. 20. nerves branching beyond the spinal cord into the body