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5.6a esophagus (constrictions (aortic arch, left main bronchus, esophageal…
5.6a esophagus
constrictions
aortic arch
left main bronchus
esophageal hiatus
cricopharyngeus muscle
layers
mucosa
submucosa
muscularis propria
adventitia
muscularis propria
1/3
striated
1/3
striated, smooth
1/3
smooth
swallowing
oral
voluntary
oropharyngeal :smiley:
involuntary
esophageal :smiley:
peristalsis
extension
C6 - T10 (esophageal hiatus)
T11 (esophagogastric junction)
sphincter
upper esophageal sphincter
lower esophageal sphincter