Nervous System

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Across
  1. 3. The endpoint of a neuron where neurotransmitters are stored
  2. 4. Provide structural and metabolic support for neurons; cling neurons to capillaries; star-shaped
  3. 5. Nerve cells that carry impulses towards the central nervous system
  4. 9. Blood vessels (capillaries) that selectively let certain substances enter the brain tissue and keep other substances out
  5. 12. a neuron with one process extending from its cell body
  6. 15. sensory receptor, sensory neuron, interneuron, motor neuron, and effector that are involved in a quick response to a stimulus; both CNS and PNS together
  7. 16. thin, delicate inner membrane of the meninges
  8. 17. Nerve cells that conduct impulses away from the central nervous system
  9. 20. A layer of fatty tissue segmentally encasing the fibers of many neurons; enables greater transmission speed of neural impulses and protects the cell
  10. 22. neurons within the brain and spinal cord that communicate between the sensory (afferent) inputs and motor (efferent) outputs
Down
  1. 1. a neural impulse; a brief electrical charge that travels down an axon
  2. 2. thalamus, hypothalamus, pituitary gland
  3. 3. the part of the peripheral nervous system that controls the glands and the muscles of the internal organs (such as the heart).
  4. 6. plasma-like clear fluid circulating in and around the brain and spinal cord
  5. 7. the division of the peripheral nervous system that controls the body's skeletal muscles
  6. 8. A neuron that has only two projections (one axon/one dendrite) from the cell body
  7. 10. Form myelin sheath in CNS
  8. 11. stem midbrain, pons, medulla oblongata
  9. 13. thick, outermost layer of the meninges surrounding and protecting the brain and spinal cord
  10. 14. a specialized cell transmitting nerve impulses; a nerve cell.
  11. 18. a nerve cell that has many dendrites and a single axon
  12. 19. three protective membranes that surround the brain and spinal cord
  13. 21. Cone shaped region of an axon where it joins the cell body.