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Ingestion

Ingestion. Saliva Fluid secreted by salivary glands Contains amylase which breaks down complex to simpler carbohydrates Lubricates food to be swallowed Dissolves food particles At this point food can be “tasted”. Ingestion cont.

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Ingestion

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  1. Ingestion • Saliva • Fluid secreted by salivary glands • Contains amylase which breaks down complex to simpler carbohydrates • Lubricates food to be swallowed • Dissolves food particles • At this point food can be “tasted”

  2. Ingestion cont. • Teeth:-incisors: specific for cutting-canine: sharp for tearing-pre-molars: grinding-molars: crushing • Used for mechanical/physical digestion. They are necessary for making food into smaller particles

  3. Ingestion cont. • Esophagus • Peristalsis: rhythmic, wavelike contraction of smooth muscle that moves food through the esophagus • Food formed in a bolus after being broken down by saliva and teeth enters the esophagus • http://www.youtube.com/watch?v=rJS-Kh5wCQU

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