题目内容
The oral cavity also contains the teeth. A child between 2 and 6 years of age has 20 teeth, known as the baby teeth or d________ teeth.
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The ________, commonly called the canines or eyeteeth, are lateral to the incisors. They are pointed teeth with deep roots that are used for more forceful gripping and tearing of food.
The soft palate is tissue that forms the posterior roof of the oral cavity. From it hangs a soft, fleshy, V-shaped mass called the_____.
Between the ileum of the small intestine and the cecum is a sphincter, the_____, that prevents food from traveling backward into the small intestine.
The ______ is a muscular tube about 25 cm (10 inches) long. In the_____, food is lubricated with mucus and moved by ______(a rhythmic contration)into the stomach.
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