Aizu S
Tissue Cell. 1982;14(2):329-39. doi: 10.1016/0040-8166(82)90031-3.
Two morphologically distinct types of neuromuscular junction on the coxal leg muscles of the cockroach, Periplaneta americana, which have been physiologically described as innervated by fast, slow and inhibitory nerve fibers, have been found. In one type of neuromuscular junction the axon terminal contains many round clear synaptic vesicles and contacts several sarcoplasmic extensions from the muscle fiber. The muscle processes adhere to the axon terminal for a short distance (short contact or SC type). The axon terminal of the other type of neuromuscular junction directly contacts the muscle fiber and no extensions of the muscle fiber are formed. The contact region is comparatively long (long contact or LC type). The nerve terminal contains many polymorphic synaptic vesicles. From a correlation of the present morphological findings and the previous physiological results, it may be suggested that the SC type of nerve terminal represents both fast and slow nerve terminals and the inhibitory terminal is of the LC type.
在美洲大蠊的髋部腿部肌肉上发现了两种形态上截然不同的神经肌肉接头，它们在生理学上被描述为由快、慢和抑制性神经纤维支配。在一种类型的神经肌肉接头中，轴突终末含有许多圆形清亮突触小泡，并与肌纤维的几个肌浆延伸部分接触。肌突在短距离内附着于轴突终末（短接触或SC型）。另一种类型的神经肌肉接头的轴突终末直接与肌纤维接触，未形成肌纤维的延伸部分。接触区域相对较长（长接触或LC型）。神经终末含有许多多形性突触小泡。根据目前的形态学发现与先前的生理学结果之间的相关性，可能表明SC型神经终末代表快和慢神经终末，而抑制性终末是LC型。
