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I need help with these last 3 questions. Please?


22. Explain the significance of the movement of the tongue during swallowing. I
23. Describe three events that occur during the pharyngeal-esophageal phase of deglutition.
24. What was the time interval that you recorded between the first and second sound?
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22. Explain the significance of the movement of the tongue during swallowing.

The tongue initiates and controls the buccal phase of swallowing by pushing contents into the pharynx.
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23. Describe three events that occur during the pharyngeal-esophageal phase of deglutition.

Mouth, nasopharynx, and larynx are blocked; upper esophageal sphincter relaxes to open esophagus; food moves through esophagus by pressure gradients created by peristalsis.
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Thank you so much! This helped a lot.   Smile
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