Oesophageal peristalsis in the cat: the role of central innervation assessed by transient vagal blockade.

摘要: Studies were performed on five cats to assess the role of extrinsic vagal innervation in control peristalsis smooth muscle oesophagus. Transient nerve blockade was accomplished by cooling cervical vagosympathetic trunks previously isolated skin loops each side neck. Peristalsis throughout body oesophagus monitored using a continuously perfused multilumen manometry tube. Striated and portions esophagus delineated abolishing activity with atropine. Secondary assessed intra-oesophageal balloon distension studies. The threshold volume for balloon-induced secondary lower Unilateral reduced incidence primary striated but not Bilateral abolished swallow-induced both smo...