An electron microscopic study of the innervation of papillary muscles in the rat.
D000818:Animals; D003593:Cytoplasm; D008854:Microscopy, Electron; D008931:Mitochondria, Muscle; D009130:Muscle, Smooth / Q000166:cytology; D009206:Myocardium / Q000166:cytology; D009441:Neurilemma; D009469:Neuromuscular Junction; D009474:Neurons; D010210:Papillary Muscles / Q000294:innervation*; D051381:Rats; D012583:Schwann Cells