The fusion of Merkel cell granules with a synapse-like structure.
D000818:Animals; D002459:Cell Fusion; D003594:Cytoplasmic Granules; D003896:Desmosomes; D004847:Epithelial Cells; D008297:Male; D008854:Microscopy, Electron; D008928:Mitochondria; D009454:Neurofibrils; D009474:Neurons / Q000166:cytology; D051381:Rats; D013569:Synapses