title: [Ultrastructure of the nerves of the human heart].
mesh_terms: D000320:Adrenergic Fibers / Q000648:ultrastructure*; D000818:Animals; D002628:Chemoreceptor Cells / Q000648:ultrastructure; D002648:Child; D002675:Child, Preschool; D002799:Cholinergic Fibers / Q000648:ultrastructure*; D005260:Female; D006321:Heart / Q000294:innervation*; D006329:Heart Conduction System / Q000648:ultrastructure; D006801:Humans; D008297:Male; D008875:Middle Aged; D013569:Synapses / Q000648:ultrastructure