Wiens T J, Govind C K
J Neurobiol. 1985 Sep;16(5):349-59. doi: 10.1002/neu.480160502.
The innervation of the distal and proximal heads of the accessory flexor muscle in three portunid crabs and two non-portunid decapods was studied electrophysiologically. In all species studied, the proximal head received only the two previously reported accessory flexor axons, an excitor and an inhibitor. The same two axons also innervated the distal head in all species, but in the portunids the distal head also received excitation from at least three, and probably sometimes four, of the main flexor excitor efferents. The accessory inhibitor exerted very strong effects in the tonic muscle fibers found in the proximal head and in the most proximal bundle of the distal head. The newly described inhibitory and excitatory distributions may have important implications for locomotory behavior.
对三种梭子蟹和两种非梭子蟹十足目动物的副屈肌近端和远端头部的神经支配进行了电生理研究。在所有研究的物种中，近端头部仅接收先前报道的两条副屈肌轴突，一条兴奋轴突和一条抑制轴突。在所有物种中，同样的这两条轴突也支配远端头部，但在梭子蟹中，远端头部还从至少三条，可能有时是四条主要屈肌兴奋传出神经接收兴奋。副抑制神经在近端头部和远端头部最近端束中的紧张性肌纤维中发挥非常强的作用。新描述的抑制和兴奋分布可能对运动行为具有重要意义。
