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| By what process does food move down the oesophagus?
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| How does the Oesophagus passes from the Thorax into the Abdomen?
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- Through the oesophageal hiatus of the diaphragm
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| What is the innervation of the Oesophagus?
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- Right and Left Vagus nerves (CN X)
- Recurrent laryngeal nerves
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| Thickening of which muscle layer forms a sphincter near the gastric juntion?
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- Inner circular layer of Tunica Muscularis
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| What are the proportions of Striated Muscle in the Oesophagus in the following species?
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In the dog: 100% In the cat: 80% (rostral) In the horse: 65% (rostral)In the pig: 33% (rostral)
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