chap 6 psych

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