Across
- 1. System that regulates “rest and digest” functions
- 3. Motor neurons that carry signals away from central nervous system to initiate action
- 4. Nervous system that includes fibers that innervate smooth muscle, cardiac muscle, and glands
- 6. Large nucleus lying in center of brain, highly connected to cerebral cortex
- 8. Nervous system that includes fibers of the motor neurons that supply skeletal muscles
- 9. Charged cells that conduct electrical signals to pass information throughout the body
- 12. Spaces between neurons where information is passed
- 15. Specific receptors for different modalities/ sensations
- 16. What transduces and groups stimuli to form a sensory surface
- 17. Outer, highly folded surface of the cerebrum
- 18. System that plays a key role in learning, memory, and emotions
- 21. What carries signal across synapses; binds postsynaptic receptors
- 23. Synaptic output of one neuron to many
- 25. Part of the nervous system that includes the brain and spinal cord
Down
- 2. Part of the brain that maintains homeostasis
- 5. System that controls “fight or flight” responses
- 7. Neurotransmitter used by motoneurons; increases membrane permeability for Na+
- 10. Transmitter that activates 2nd messenger system
- 11. Multilayered sheath of plasma membrane that wraps around axonal fibers as an insulator
- 13. Nerve network of the digestive tract
- 14. What action potentials do when locally generated depolarizing currents spread to adjacent regions of the membrane
- 19. Synaptic input of many neurons to one
- 20. Part of the nervous system that includes nerve fibers
- 22. Sensory neurons that sense stimulus
- 24. Conversion of stimulus energy to a neuronal signal