Nervous System

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Across
  1. 2. receives a signal from the presynaptic cell and responds via depolarisation or hyperpolarisation
  2. 4. receive a signal from the presynaptic terminal that triggers a change in the membrane potential of the neuron through the opening and closing of ion channels
  3. 7. cells in the nervous system that support neurons
  4. 8. nervous system that contains all nerves outside the central nervous system
  5. 12. central nodes of neural circuits, enables communication between sensory or motor neurons
  6. 13. also called neurilemma cells
  7. 16. specialized area of membrane of the axon terminal that faces the plasma membrane of the neuron or muscle fibre with which the axon terminal establishes a synaptic junction
  8. 18. tree-like extensions at the beginning of a neuron
  9. 20. causes and action or response in an organ or cell
  10. 21. referred to as the body's chemical messengers, molecules used by the nervous system to send messages between neurons
  11. 24. generates electrical signals called action potentials
  12. 25. a large granular body found in neurons
Down
  1. 1. sensory neurons that carry nerve impulses from sensory stimuli to the CNS and brain
  2. 3. nervous system that regulates blood pressure and breathing rate
  3. 5. nervous system that controls functions of body and mind
  4. 6. insulating layer that forms around nerves
  5. 9. cluster of nerve cells found in the peripheral nervous system
  6. 10. also called nerve fibre, carries nerve impulses away from the cell body
  7. 11. the site of transmission of electric nerve impulses between two nerve cells
  8. 14. also known as the synaptic bouton and terminal bouton- critical for neural communication
  9. 15. a bundle of fibers that uses electrical and chemical signals to transmit sensory motor information from one body part to another
  10. 16. sensory receptors located in the subcutaneous tissues
  11. 17. motor neurons that carry neural impulses away from the CNS and towards muscles to cause movement
  12. 19. nervous system associated with voluntary control of the body's movements
  13. 22. gaps between the myelin insulation of Schwann cells which insulate the axon of the neuron.
  14. 23. spherical part of the neuron that contains the nucleus