Synaptic Transmission and action potential

Edit Answers
123456789101112131415161718192021222324252627282930313233343536
Across
  1. 3. _______ channels: opened by inhibitory neurotransmitters; induce hyperpolarization
  2. 4. neurotransmitter: learning excitatory&inhibitory
  3. 6. stimulates eating and may act to prevent seizures
  4. 10. neurotransmitter: fight or flight
  5. 12. ______ molecule neurotransmitters; 3+ AA; endorphines and encephalins; substance P, neuropeptide Y
  6. 14. numerous presynaptic axons converge on a ________ neuron generating thousands of EPSPs and IPSPs
  7. 16. where graded potentials are integrated to generate action potentials
  8. 19. _____ synapses: used as the electrical signal passes by the axon terminal; ex: variscosities in smooth muscle
  9. 21. minimal voltage change to trigger an action potential
  10. 22. ______ synapses: facilitated by gap junctions; bidirectional transmission; coexist and interact with chemical synapses
  11. 24. carries pain signals
  12. 25. neurotransmitter: euphoria
  13. 27. _____ receptors: act through second messenger systems; ex: G-Proteins
  14. 28. small molecule of gas; freely permeable to membranes; NO CO
  15. 31. core components of the brain, spinal cord and nerves
  16. 33. neurotransmitter: pleasure
  17. 34. _______ summation: succesive discharges from a single presynaptic terminal
  18. 35. _______ channels: opened by excitatory neurotransmitters; induce depolarization
  19. 36. local membrane potentials
Down
  1. 1. _______ summation: graded potentials induced by different synapses
  2. 2. _______ transport is related with cargo for degradation; ex: recycled membrane vesicles
  3. 4. ________ transport is related with synaptic components; ex: flow of synaptic vesicles and mitochondria
  4. 5. neurotransmitter: concentration
  5. 7. action potentials are initiated when graded potentials reach a specific level
  6. 8. small membranous protrusions that synapse with different axons allowing one dendrite to communicate with hundreds of axons
  7. 9. All APs generated at trigger zone are _________ and propagate without losing strength
  8. 11. shifts MP toward more positive
  9. 13. ATP and adenosine
  10. 15. ______ synapses: most common, usually unidirectional; can be excitatory or inhibitory small ______ molecule neurotransmitters; AA, biogenic amines, purigenic, acetylcholine
  11. 17. neurotransmitter: memory; excitatory
  12. 18. depolarizing graded potentials; drives the MP toward threshold; (acronym)
  13. 20. ________ conduction: "jumping" of electrical signal down an axon; speed increased by myelin sheath
  14. 23. hyperpolarizing graded potentials
  15. 26. neurotransmitter: mood excitatory&inhibitory
  16. 28. neurotransmitter: calming; inhibitory
  17. 29. axonal proteins are synthesized in the _____ and transported to the axon
  18. 30. shift MP toward more negative
  19. 32. bind to cannabinoid receptors and cannabinoid receptor proteins; unconventional