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Teasing preparations of cat extraocular muscles (EOM) were used to study the arrangement of muscle fibers and the distribution of the different cholinesterase-positive sites, i.e. (1) large motor endplates, (2) small motor endings of the “en grappe” type, (3) myotendinous junctions and (4) myomyous junctions. The distribution of these(More)
Es ergab sich, dass die Neurotubulusdichte in den Axonen eines Hautnerven (Ratte, N. saphenus) klar höher ist als in gleich dicken Fasern eines Muskelnerven (N. gastrocnemius med.) Ein weiterer Befund leistet einen Beitrag zur Erklärung dieses Gegensatzes: Die Neurotubulusdichte in den peripheren Neuriten primärer sensibler Neurone unmittelbar distal des(More)
In the denervated extensor digitorum longus muscle of the rat type I and type II muscle fibres were differentiated histochemically and their course of atrophy was studied. Until 42 days after denervation type I and type II fibres could be identified by means of the myofibrillar ATPase reaction. Up to that time an exclusive atrophy of type II fibres was(More)
Guinea pig stapedius muscle is exceptional among all skeletal and even stapedius muscles of mammals: Muscle size (0.75 mm long, 0.3 mm of maximal diameter) as well as muscle fibres (about 200 μm long, about 6 μm in diameter) are extremely small, and many characteristics of developing muscle persist up to the adult stage. Quantitative data on blood supply(More)
Ungefähr 7 Wochen nach Transplantation zeigte sich eine Reinnervation der Muskeln durch kollaterale Sprossung aus den darunterliegenden Interkostalnerven. Die Transplantate reagierten auf indirekte Stimulation. Histochemisch waren neugebildete motorische Endplatten nachweisbar. In einigen Fällen konnte an Isolationspräparaten an ein- und derselben(More)
The juxtaoral organ of adult human is investigated by means of electron microscopy. The parenchyma of the juxtaoral organ, as a derivative of the oral epithelium, is composed of two different cell types which still show certain similarities with corresponding cell types of squamous epithelia. The cells of type 1 — in some respects similar to keratinocytes(More)