title: Functional changes in frog neuromuscular junctions studied with freeze-fracture.
mesh_terms: D000818:Animals; D001001:Anura; D002118:Calcium / Q000494:pharmacology; D003594:Cytoplasmic Granules; D004558:Electric Stimulation; D004705:Endocytosis; D005615:Freezing; D006652:Histological Techniques; D008274:Magnesium / Q000494:pharmacology; D009046:Motor Neurons / Q000502:physiology; D009469:Neuromuscular Junction / Q000166:cytology* / Q000187:drug effects / Q000502:physiology; D011894:Rana pipiens; D013570:Synaptic Membranes; D013572:Synaptic Vesicles
chemical_list: D008274:Magnesium; D002118:Calcium