Biology A

Edit Answers
1234567891011
Across
  1. 3. chemical that depresses neural activity, temporarily lessening pain and anxiety
  2. 5. psychology branch of psychology concerned with the links between biology and behavior
  3. 6. nerve impulse
  4. 8. level of stimulation required to trigger a neural impulse
  5. 9. neuron extension that sends messages to other neurons or cells
  6. 10. neuron extensions that receive messages and conduct them toward the cell body
  7. 11. junction between the axon tip of a sending neuron and the dendrite or cell body of a receiving neuron
Down
  1. 1. natural, opiate-like neurotransmitters liked to pain control and pleasure
  2. 2. neuron-produced chemicals that cross synapses to carry messages to other neurons or cells
  3. 4. support, nourish, and protect neurons; they may also play a role in learning, thinking, and memory
  4. 6. neuron's reaction of either firing or not
  5. 7. nerve cell; the basic building block of the nervous system