title: Ultrastructural features of synapses of gap junction type in frog spinal motor nuclei.
mesh_terms: D000818:Animals; D001369:Axons / Q000648:ultrastructure; D003712:Dendrites / Q000648:ultrastructure; D008854:Microscopy, Electron; D009046:Motor Neurons / Q000648:ultrastructure; D011895:Rana ridibunda; D013116:Spinal Cord / Q000648:ultrastructure*; D013569:Synapses / Q000648:ultrastructure