. Cunningham's Text-book of anatomy. Anatomy. STEUCTUEE OF THE STOMACH. 1175 the cardia, and pass downwards and to the left on both surfaces. Further to the right these looped fibres are succeeded by circles which surround the organ completely. Traced towards the narrow end of the stomach, the circular bundles grow thicker, and at the pylorus they undergo a further in- crease, giving rise to the pyloric sphincter which surrounds the orifice as a thick muscular ring. The fibrce obliquce, forming the inner layer, consist of fibres which are arranged on the fundus and ad- jacent parts of the stom
. Cunningham's Text-book of anatomy. Anatomy. STEUCTUEE OF THE STOMACH. 1175 the cardia, and pass downwards and to the left on both surfaces. Further to the right these looped fibres are succeeded by circles which surround the organ completely. Traced towards the narrow end of the stomach, the circular bundles grow thicker, and at the pylorus they undergo a further in- crease, giving rise to the pyloric sphincter which surrounds the orifice as a thick muscular ring. The fibrce obliquce, forming the inner layer, consist of fibres which are arranged on the fundus and ad- jacent parts of the stomach, in much the same manner as those of the middle layer are on the body and pyloric part of the organ (Fig. 926, C). They are continuous above with the deeper circular fibres of the in- ferior end of the oesophagus, and form U-shaped bundles which loop over the stomach immediately to the left of the cardia, and run very obliquely downwards and to the right for a considerable distance on both surfaces of the organ. These looped fibres, as they pass to the left, gradually become less oblique, and finally form circles which surround the wide end of the stomach completely, even as far as the summit of the fundus. The oblique fibres can be most readily shown by removing the circular fibres on either surface below the cardia. When traced towards the right, they will be found to terminate by turning down and joining the fibres of the circular layer. Tela Submucosa. — The sub- mucous coat is a layer of strong but loose connective tissue, which lies between and unites the muscular and mucous coats (Fig. 924). It is more loosely attached to the muscular and more closely to the mucous coat, and it forms a bed in which the vessels and nerves break up before entering the mucous membrane. Tunica Mucosa.—If examined in the fresh state soon after death, the mucous coat is of a reddish-gray colour and of moderate consistence. When examined some time after death, the colour turns to a dark
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