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Swallowing

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bacalaureat Oral Physiology Mind Map on Swallowing, created by Caroline Oxford on 21/05/2013.
Caroline Oxford
Mind Map by Caroline Oxford, updated more than 1 year ago
Caroline Oxford
Created by Caroline Oxford almost 11 years ago
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Resource summary

Swallowing
  1. Preparatory Phase Oral
    1. Preparatory
      1. Open Mouth
        1. Sub atmospheric pressure
          1. Mastication
            1. Open Oralpharyngeal
      2. Transfer
        1. Swallow bits at a time
          1. Seal off food from vestible
            1. Pressure wave towards pharynx
                1. Brace yourself
                  1. Pressure sucks down bolus
        2. Transport Phase Pharyngeal
          1. Between Oropharyngeal sphincter AND
            1. Upper Oesophageal sphincter
              1. 4 exits
                1. upper airway
                  1. Lower airway
                    1. These 3 seal off
                      1. entrance and exit through pharynx in 1 sec
                        1. 40cm/sec down to 4cm/sec so to breath
                          1. with food or on own accord with saliva build up
                            1. Soft palate elevated to shut nose
                              1. Larynx pulled up and forward to meet food
                                1. Intrinsic Muscles of larynx abduct
                                  1. This allows eppiglotis to close over larynx
                                    1. Pharyngo-oesopageal sphincter opens to allow bolus
                                      1. Oral pharyngeal
                                        1. Dysplasia (Difficulty swallowing
                                          1. Stroke
                                            1. MS
                                              1. Bells Palsy
                                                1. Parkinsons
                      2. Oral cavity
                2. Oseophagael Transport Phase
                  1. Peristalsis
                    1. Waves in Oesophagus
                      1. Vagus innervation
                        1. Pressure higher in stomach
                          1. unctional sphincter to stop regurg
                            1. Oesophageal
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