Kidney Crunch role with other "Cereals" (Body Systems)

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Across
  1. 4. Part of the Circulatory System and is made up of the heart, blood, and blood vessels.
  2. 5. Part of the Nervous System that consists of nerves and ganglia on the outside of brain and spinal cord.
Down
  1. 1. Canal A long tube inside the body that food passes through during the Digestive System.
  2. 2. A decrease in oxygen in the Respiratory System.
  3. 3. Important white blood cells in the Immune System.