Cottrell D F
Department of Preclinical Veterinary Sciences, University of Edinburgh, Summerhall, UK.
Vet Res Commun. 1994;18(4):319-30. doi: 10.1007/BF01839200.
Vagally-mediated regulation of motility in the abomasal body by duodenal and abomasal antral motility was demonstrated in acutely prepared anaesthetized sheep. The enteric plexuses between the abomasal body, antrum and duodenum were interrupted by transection. Antral contractions were more effective than duodenal contractions at causing inhibition of the abomasal body, and antral isometric conditions were more effective than antral isotonic conditions. Inhibition of motility in the abomasal body was reduced by unilateral cervical vagotomy, was abolished by bilateral cervical vagotomy, and was reversibly inhibited by cervical vagus cold block. The demonstration of vagal pathways in abomaso-abomasal reflexes confirms a functional homology of the mechanisms in the ruminant and animals with simple forms of stomach.
在急性制备的麻醉绵羊中,证实了十二指肠和皱胃窦蠕动对皱胃体蠕动的迷走神经介导调节。通过横切术中断了皱胃体、窦和十二指肠之间的肠神经丛。在引起皱胃体抑制方面,窦收缩比十二指肠收缩更有效,且窦等长收缩条件比窦等张收缩条件更有效。单侧颈迷走神经切断术可降低皱胃体的蠕动抑制,双侧颈迷走神经切断术可消除该抑制,而颈迷走神经冷阻滞可使其可逆性抑制。皱胃-皱胃反射中迷走神经通路的证实,确认了反刍动物和具有简单胃形式的动物中机制的功能同源性。