Which statement about the cephalic phase of salivary gland secretion is INCORRECT?
- It is mediated by the parasympathetic division of the autonomic nervous system.
- It is accompanied by local vasodilation (i.e., increased blood flow through the gland).
- It has both psychic and gustatory components.
- It is one of the deglutition reflexes, controlled by the deglutition center.
- It may be enhanced (i.e., increased by the administration of secretin).