Brain and Nervous System

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Across
  1. 2. brain tissue is able to take on new functions
  2. 4. connects the two brain hemispheres and carries messages between them.
  3. 5. Located in temporal lobe, helps control receptive language
  4. 6. States that if a neuron fires, it always fires at the same intensity; all action potentials are the same strength
  5. 9. Division of the peripheral nervous system that controls the body's skeletal muscles
  6. 10. lying at top of head toward the rear; includes somatosensory cortex and general association area
  7. 11. Tiny, fluid filled gap between the axon terminal of one neuron and the dendrite of another
  8. 12. "recharging phase" when a neuron, after firing, cannot generate another action potential
  9. 13. State of a neuron when it is at rest and capable of generating an action potential
  10. 15. A chemical messenger that travels across the synapse from one neuron to the next and influences whether a neuron will generate an action potential
  11. 17. Division of the peripheral nervous system that controls the body's skeletal muscles
  12. 18. Brain's outer wrinkly surface. Bodies ultimate control and information processing center
  13. 20. lying at back of head; includes visual processing area
  14. 21. Nerves that carry information to the muscles and glands from the CNS
  15. 22. Cell body of a neuron, which contains the nucleus and other parts that keep the cell healthy.
  16. 23. lies just behind the forehead; includes motor cortex; involved in making plans and judgment
  17. 24. Extension of a neuron through which neural impulses are sent
Down
  1. 1. lying above the ears; auditory areas
  2. 3. Bushy branching extensions of a neuron that receive messages and conduct impulses toward the cell body
  3. 4. Brain and Spinal Cord
  4. 7. A nerve cell; basic building block of nervous system
  5. 8. sensory and motor nerves that connect the central nervous system to the rest of the body
  6. 14. Nerves that carry information from the sense receptors to the Central Nervous System (CNS)
  7. 16. A neural impulse; a brief electrical charge that travels down the axon of a neuron
  8. 17. Endpoint of a neuron, where neurotransmitters are stored
  9. 19. Frontal lobe, usually left hemisphere, directs muscle movement involved in speech