Nervous System

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Across
  1. 4. Relays information from skin, sense organs & skeletal muscles to CNS.
  2. 5. Is composed of brain and ventralnervecords with clusters of neurons called ganglia.
  3. 6. When body is at rest or with normal functions.
  4. 8. The rest of the nerves in animal’s body.
  5. 10. The three coverings around the brain and spine and help cushion, protect, and nourish the brain and spinal cord.
Down
  1. 1. Fight or flight response.
  2. 2. Relays information to internal organs.
  3. 3. Allows body to respond quickly to changes in the environment by gathering information, transmitting, and processing information to determine the best response, and sending information to muscles, glands, and organs so they can respond correctly.
  4. 7. The onset of cephalization marks a more complex nervous system.
  5. 9. In Hydra,_____________ are diffused all over the body to control the contraction of the gastrovascularcavity or the gastrocoel.