Across
- 3. includes brain and spinal cord
- 5. the swelling at the end of an axon branch
- 9. part of the neuron that receives signals
- 10. a neuron with multiple dendrites and a single axon attached to the cell body
- 11. another word for “motor”
- 13. PNS glial cell that forms myelin sheath
- 15. a neuron with one dendrite and one axon attached to the cell body
- 18. neuron that integrates information, located entirely within CNS
- 19. a neuron with only dendrites and no axon
- 21. ______ division detects changes in skin, skeletal muscles, joints, etc and sends information to CNS
- 23. a neuron with a single attachment to the cell body
- 25. division carries signals from CNS to cardiac muscle, smooth muscle, glands
- 26. includes all nerves and ganglia
- 28. gap between axon terminal and post-synaptic cell in a chemical synapse
- 29. contains the nucleus of the neuron
- 30. chemical signals that diffuse into synaptic cleft at a chemical synapse
Down
- 1. ______ cell, CNS glial cell that forms CSF
- 2. part of the neuron that transmits nerve impulses to other cells
- 4. ______ division carries signals from CNS to skeletal muscles
- 6. another word for “sensory”
- 7. CNS glial cell that forms BBB
- 8. ______ division detects changes in internal organs and sends information to CNS
- 12. _____ synapses are formed by gap junctions and involve movement of ions from cell to cell
- 14. ______ neuron, aka efferent neuron
- 16. ______ neuron, aka afferent neuron
- 17. CNS glial cells that act as “janitors”
- 20. term for electrical signal carried by an axon
- 22. nourishing, protective, supportive cells of nervous tissue
- 24. cell of nervous tissue that initiates, transmits, and receives nerve impulses
- 27. CNS glial cell that forms myelin sheath
- 28. _____ cell, PNS glial cell that maintains environment for neuron function