Across
- 3. when an action potential occurs, positive charged ions flow into the neuron and negative charged ions flow out
- 6. glands that trigger fight or flight response
- 8. small sacs in the axon where neurotransmitters are stored
- 10. state of inactive neuron
- 12. passes messages away from the cell body to other neurons, muscles, or glands
- 14. mimics the neurotransmitter
- 17. covers axon of some neurons and helps speed neural impulses
- 19. form junctions with other cells
- 20. input nerves that go towards the central nervous system
- 22. receives messages from other cells
- 28. mobilizes energy in stressful situations
- 29. communicate internally in the brain and spinal cord
- 31. carry information from the brain and spinal cord to muscles and glands
Down
- 1. division of peripheral system that regulates key involuntary functions of the body
- 2. division of peripheral system that controls skeletal muscles
- 4. sends signals that calm cell
- 5. the master gland
- 7. calms body and conserves it’s energy
- 9. chemically controls various functions of cells, tissues, and organs with glands and hormones
- 11. charge inside neuron increases which cause depolarization of the neuron
- 13. brain region that controls pituitary gland
- 15. slightly negative charge in neuron and acts as a store of potential energy
- 16. gland that regulates metabolism
- 18. life support for the cell
- 21. blocks receptor sites
- 23. neuron pushes out positive ions and brings in negative ions
- 24. carry incoming information from the senses to brain and spinal cord
- 25. sends signals that stimulate the cell
- 26. chemical messenger inside the body
- 27. output nerves that go away from the central nervous system
- 30. it receives information, carries information down its lengths, and passes information on to others, muscles, and glands