Neural control of a molluscan blood vessel, anterior aorta of aplysia.
Neural control of a molluscan blood vessel, anterior aorta of aplysia.
复制标题
软体动物血管、海兔前主动脉的神经控制。
DOI：
10.1152/jn.1981.46.5.967
复制
发表时间：
1981
影响因子：
2.5
通讯作者：
McAdoo,DJ
中科院分区：
文献类型：
--
作者：
Sawada,M;Blankenship,JE;McAdoo,DJ
我们描述了海洋软体动物海兔前主动脉神经控制的几个特征。这条血管接受新描述的运动神经元和R14细胞的输入，R14细胞的假定递质甘氨酸增强血管张力(37)。离开海绵体心脏的脑室，血液被分配到三条主要动脉干：胃食道动脉、腹主动脉和前主动脉(12，19)。Mayeri，Koester和他的同事(27，28，30，31)详细描述了加州管圆线虫心脏、腹主动脉和胃食道动脉的运动神经支配。他们确定了7个直接兴奋动脉肌肉和兴奋或抑制心脏的运动神经元(31)，并描述了其中某些运动神经元所使用的递质(30)。其中四个细胞支配心脏：RBHE(=R 17)和LDHE是心脏兴奋因子，两个LDHI细胞抑制心脏。RBHE是5-羟色胺能神经元，而LDHI细胞和三个血管收缩运动神经元LBvc细胞是胆碱能细胞(30，31)。其中两个LBvc神经元支配腹主动脉和胃食道动脉，第三个LBvc细胞仅支配腹主动脉(27，31)。LBvc运动神经元在动脉血管系统中产生便利的EBP。所有这七个运动神经元的轴突都从心包神经发出，没有一个明显地通过这一途径支配前动脉(见图1)。本组研究的两条血管均未发现抑制性输入。中间神经元I、II和XI在协调血管活动中的作用也被描述(27，28；另见参考文献。8、26)。
We describe several characteristics of the neural control of the anterior aorta of the marine mollusk Aplysia. This vessel receives input from motoneurons newly described here and from cell R14, whose presumed transmitter, glycine, enhances vascular tone (37).On leaving the ventricle of the heart of Aplysia, the blood is distributed into three major arterial trunks: the gastroesophageal artery, the abdominal aorta, and the anterior aorta (12, 19). Mayeri, Koester, and coworkers (27, 28, 30, 3 1) have provided a detailed account of the motor innervation of the heart, abdominal aorta, and gastroesophageal artery of A. californica. They identified seven motoneurons that directly excite arterial muscle and excite or inhibit the heart (3 1) and described the transmitters used by certain of these motoneurons (30). Four of the cells innervate the heart: RBHE (= R 17) and LDHE are heart excitors, and two LDHI cells inhibit the heart. RBHE is serotonergic, while the LDHI cells as well as three vasoconstrictor motoneurons, the LBvc cells, are cholinergic (30, 3 1). Two of the LBvc neurons innervate the abdominal aorta and the gastroesophageal artery, and the third LBvc cell innervates the abdominal aorta only (27, 3 1). The LBvc motoneurons produce facilitating EJPs in the arterial vasculature. All seven of these motoneurons send their axons out the pericardial nerve, and none apparently innervates the anterior aorta via this pathway (see Fig. 1). No inhibitory input was found to the two blood vessels studied by this group. The role of interneurons I, II, and XI in coordinating vascular activity was also described (27, 28; see also Refs. 8, 26).