Vocabulary Match each word in Column A to its meaning in Column B

Science World, March 31, 2008

Column A

1. synapse

2. myelination

3. prefrontal cortex

4. limbic system

5. synaptic pruning

Column B

A. brain area important for thinking ahead and sizing up risk and reward

B. process in which axons become wrapped up in fatty myelin sheath

C. brain system that plays a central role in emotional responses

D. the small space between axons and dendrites where neurons exchange information

E. cutting back the number of synapses