The sight, smell or thought of food activates the _____ phase of digestion.

Name: The sight, smell or thought of food activates the _____ phase of digestion.
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Question

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The cephalic phase of digestion is initiated by the sight, smell, or thought of food, which stimulates the central nervous system to activate the parasympathetic nervous system. This, in turn, increases secretion of gastric juices and prepares the stomach for food intake.

The Sight, Smell or Thought of Food Activates the _____