Weerasuriya A, Bieger D, Hockman C H
Am J Physiol. 1980 Nov;239(5):R407-14. doi: 10.1152/ajpregu.1980.239.5.R407.
In adult cats anesthetized with urethan, a number of observations were made that support the concept that some control over the rate of reflexly induced swallowing occurs in the intermediate network at the level of the nucleus of the solitary tract. It was shown that different nerves, e.g., the two superior laryngeal and glossopharyngeal nerves, when activated in sequence interact in such a manner as to facilitate reflex swallowing. It was also shown that the decrement in the reflex response observed to continuous stimulation of a primary afferent nerve, e.g., one superior laryngeal, can be reversed by switching the stimulation to another nerve either on the same or contralateral side. And finally, following discrete medullary lesions, it was observed that that portion of the nucleus of the solitary tract located 2 mm or more rostral to the rostralmost point of the dorsal medial sulcus appears to contain an integral component of the intermediate network that governs reflexly induced swallowing, whereas lesions restricted to the ventrolateral portion of the nucleus of the solitary tract have no effect on the reflex response.
在用氨基甲酸乙酯麻醉的成年猫中,进行了多项观察,这些观察支持这样一种观点,即在孤束核水平的中间网络中,对反射性诱导吞咽的速率存在一定控制。结果表明,不同的神经,例如两条喉上神经和舌咽神经,按顺序激活时会以促进反射性吞咽的方式相互作用。还表明,对一条初级传入神经(例如一条喉上神经)进行持续刺激时观察到的反射反应减弱,可以通过将刺激切换到同侧或对侧的另一条神经来逆转。最后,在进行离散的延髓损伤后,观察到孤束核中位于背内侧沟最前端点前方2毫米或更远的部分似乎包含控制反射性诱导吞咽的中间网络的一个组成部分,而局限于孤束核腹外侧部分的损伤对反射反应没有影响。