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Abstract
Extract
A number of accounts on the structure of the canine oesophagus are available (Chauveau, Citation1891; Sisson, Citation1963; Trautmann and Fiebiger, Citation1957; Botha, Citation1958; Meiss et al, Citation1958; Bradley, Citation1959; Nickel et al, Citation1960; Mann and Shorter, Citation1964; Miller et al, Citation1964); however, only in the latter two has the entire organ and its tunics been described in detail. The only histological study of each of the structural tissue layers throughout the length of the canine oesophagus was that made by Mann and Shorter (Citation1964). It is not surprising, therefore, that discrepancies exist, particularly in descriptions of the fibre arrangement in the muscular coat, in the presence or absence of an anatomical gastro-oesophageal sphincter, and in the level of the squamocolumnar epithelial change.