Module 3: Neural and Hormonal System

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Across
  1. 3. the division of the PNS that controls the body’s glands and muscles of the internal organs
  2. 4. the neurons that carry incoming information from the sensory receptors to the brain and spinal cord
  3. 7. (2 words) the body’s slow chemical communication system; set of glands that secrete hormones into the bloodstream
  4. 10. (3 words) the sensory and motor neurons that connect the central nervous system to the rest of the body
  5. 14. the division of the autonomic nervous system that arouses the body, mobilizing its energy in stressful situations.
  6. 15. (2 words) cells in the nervous system that support, nourish, and protect neurons
  7. 17. the level of stimulation required to trigger a neural impulse
  8. 19. the neurons that carry outgoing information from the brain and the spinal cord to the muscles and glands
  9. 20. the neurons within the brain and spinal cord that communicate internally and intervene between the sensory inputs and motor outputs
  10. 21. the space between the dendrites of one neuron and the axons of another
Down
  1. 1. (3 words) the brain and spinal cord
  2. 2. the division of the autonomic nervous system that calms the body, conserving energy
  3. 5. (2 words) a neural impulse; an electrical charge that travels down an axon
  4. 6. (2 words) the gland that influences the hypothalamus and regulates growth and control of the other endocrine glands
  5. 8. (2 words) a fatty tissue layer segmentally encasing the axons of some neurons; enables vastly greater transmission speed as neural impulses hop from one node to the next
  6. 9. chemical messengers that travel through the bloodstream and affect other tissues
  7. 11. (2 words) a pair of endocrine glands that sit above the kidneys and secrete hormones that help arouse the body in time of stress
  8. 12. a nerve cell; the basic building block of the nervous system
  9. 13. the division of the PNS that controls the body’s skeletal muscles
  10. 16. the neuron extension that passes messages through its branches to other neurons or to muscles or glands
  11. 18. a neuron’s bushy, branching extensions that receive messages and conduct impulses toward the cell body