| 单词 | pulsion diverticulum |
| 释义 | > as lemmaspulsion diverticulum pulsion diverticulum n. Medicine a diverticulum caused by increased pressure within the lumen of a part of the digestive tract, esp. one occurring at the junction of the pharynx and the oesophagus (cf. Zenker n.1 2). ΚΠ 1884 M. Mackenzie Man. Dis. Throat & Nose ii. 122 They have been called ‘pressure diverticula’ (‘Pulsions-Divertikel’) by Ziemssen, owing to the fact that they are formed by pressure of the oesophagal wall outwards.] 1897 R. H. Fitz in Twentieth Cent. Pract. VIII. 94 The pulsion diverticulum is almost invariably solitary. 1968 New Eng. Jrnl. Med. 18 Apr. 888/2 The pulsion, or true, diverticulum occurs in juxtasphincteric positions: in the pharyngoesophageal region proximal to the cricopharyngeus muscle, ‘the upper esophageal sphincter’; and in the epiphrenic position proximal to the ‘inferior esophageal sphincter’. 2004 Med. Hypotheses 62 933/1 The presence of pulsion diverticulae in the middle third of the esophagus suggests congenital weaknesses in the bowel wall. < as lemmas |
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