The structure of the Nervous system

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Across
  1. 1. nervous system / The division of the peripheral nervous system that controls the body's skeletal muscles.
  2. 2. / Chemical messengers produced by the endocrine glands and circulated in blood.
  3. 3. division / The part of the autonomic nervous system that calms the body.
  4. 4. nervous system / The sensory and motor nerves that connect the central nervous system to the rest of the body.
  5. 6. gland / Endocrine gland that helps regulate the energy level in the body.
  6. 8. nervous system / The brain and the spinal chord.
  7. 9. system / One of the body's two communication systems that produces hormones.
Down
  1. 1. division / The part of the autonomic nervous system that arouses the body to deal with perceived threats.
  2. 3. gland / The endocrine system's highly influential "master gland" that controls other endocrine glands.
  3. 5. Nervous system / The division of the peripheral nervous system that controls the glands and muscles of the internal organs.
  4. 7. Gland / Endocrine glands that help to arouse the body in times of stress.