Morphologic Studies on Human and Rodent Facial Muscles
Denervation of skeletal muscle fibers results in their atrophy. Early morphologic consequences of acutely denervated human muscle fibers are largely unknown. Conversely, morphologic features of human denervated and neurogenically atrophic muscle fibers have been amply established in chronic disorders such as spinal muscular atrophies and neuropathies. The dynamics of these denervating disorders, which include precise onset, velocity of evolution, and completion of denervation and thereby the nerve-supplied metabolic and electrophysiological inputs from the nerve to the corresponding muscle fibre, are morphologically unexplored.
KeywordsSpinal Muscular Atrophy Facial Muscle Human Muscle Fiber Atrophic Muscle Fiber Myosin Heavy Chain Composition
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Bardosi G, Goebel HH, Stennert E (1987) The ultrastructure of normal and denervated human facial muscle. Plast Reconstr Surg 79: 171–176PubMedCrossRefGoogle Scholar
Belal A Jr (1982) Structure of human muscle in facial paralysis. J Laryngol Otol 96: 325–334PubMedGoogle Scholar
Biral D, Scarpini E, Angelini C, Salvati G, Margreth A (1989) Myosin heavy chain composition of muscle fibers in spinal muscular atrophy. Muscle Nerve 12: 43–51PubMedCrossRefGoogle Scholar
Blaivas M, Nelson C (1990) Aging changes in human orbicularis oculi muscle (abstract). J Neuropathol Exp Neurol 49: 298CrossRefGoogle Scholar
Blaivas M, Nelson CC (1991) Ultrastructural characteristics of human orbicularis oculi muscle at various ages. J Neuropathol Exp Neurol 50: 351 (abstr)Google Scholar
Krarup C (1977) Electrical and mechanical responses in the Platysma and in the adductor pollicis muscle: in normal subjects. J Neurol Neurosurg Psychiatry 40: 234–240PubMedCrossRefGoogle Scholar
Nelson C, Blaivas M (1990) Histologic and histochemical charac¬teristics of eye brow and eyelid muscles. J Neuropathol Exp Neu¬rol 49: 298 (abstr)Google Scholar
Schwarting S, Schröder M, Stennert E, Goebel HH (1982) Enzyme histochemical and histographic data on normal human facial muscles. ORL J Otorhinolaryngol Relat Spec 44: 51–59PubMedCrossRefGoogle Scholar
Schwarting S, Schröder M, Stennert E, Goebel HH (1984) Morphology of denervated human facial muscles. ORL J Otorhinolaryngol Relat Spec 46: 248–256PubMedCrossRefGoogle Scholar