Psych Chapter 6 Vocabulary

2. the part of the peripheral nervous system that controls internal biological functions.
3. an imaging technique used to study the brain to pinpoint injuries and brain deterioration.
5. a chemical communication system, using hormones, by which messages are sent through the bloodstream.
6. a machine used to record the electrical activity of large portions of the brain.
7. nerves branching beyond the spinal cord into the body
8. the different regions into which the cerebral cortex is divided.
10. the basic building blocks of heredity.
11. the brain and spinal cord
13. the part of the peripheral nervous system that controls voluntary movement of skeletal muscles.
15. the long, thin cells of nerve tissue along which messages travel to and from the brain.
18. twins who come from two fertilized eggs fertilized by two different sperm.
20. the expression of a particular trait in an organism.
21. twins who come from one fertilized egg, having the same heredity.
24. the center of control of the endocrine system that secretes a large number of hormones.
25. a measuring technique used to study brain structure and activity.
27. chemical substances that carry messages through the body in blood.

1. an imaging technique used to see which brain areas are being activated while performing tasks.
4. the chemicals released by neurons which determine the rate at which other neurons fire.
9. descended from ancestors with dissimilar genetics.
12. a part of the brain located at the rear base of the skull that is involved in the basic processes of life
14. the set of genes in an organism.
16. the genetic transmission of characteristics from parents to their offspring.
17. 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.
19. nerves that run up and down the length of the back and transmit most messages between the body and brain.
22. a small part of the brain above the pons that arouses the brain, integrates sensory information, and relays it upward.
23. the gap that exists between individual nerve cells.
26. descended from ancestors with similar genetics.