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ChapterReviewAnatomy and Physiology1.The accessory organs of the digestive system are theliver,pancreas, gallbladder, and salivary glands.2. salivais the watery, slippery secretion in the oral cavity that containsthe digestive enzyme, anylase.3.The crownof a tooth is above the gum line and the rootof the tooth is below the gum line.4.The hardest substance in the body is enamel.5.The epiglottisprevents food from entering the trachea.6.The stomach secretes hydrochloric acid.7. sphinctersare rings of muscles that control entry into or exit from an organ.