Extraocular Muscle
Mostrando 25-36 de 51 artigos, teses e dissertações.
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25. Structure and innervation of extraocular muscles of Carassius.
The extraocular muscles of the carp Carassius contain two types of muscle fibre. Large white fibres have ribbon-shaped peripheral myofibrils and triads located at the Z line. Small red fibres, rich in mitochondria, have polygonal-shaped myofibrils and triads at the A-I junction. Silver- and cholinesterase-stained preparations show that the large fibres are i
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26. Ocular myasthenia: a rare presentation with MuSK antibody and bilateral extraocular muscle atrophy
BMJ Group.
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27. Stretch reflex in an extra-ocular muscle. Electromyographic findings in a case of orbital fracture.
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28. Contractile properties and temperature sensitivity of the extraocular muscles, the levator and superior rectus, of the rabbit.
1. Contractile and fatigue-resistance characteristics, temperature sensitivity (10-37 degrees C) of contraction, and histochemical fibre types were determined for two of the extraocular muscles, the superior rectus and levator palpebrae superioris (levator), of the rabbit. 2. The levator displayed similar contractile characteristics (time to peak, half-relax
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29. Malignant melanoma of the ciliary body presenting as extraocular metastasis in the temporalis muscle
BMJ Group.
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30. Structural alterations of extraocular muscle associated with Apert's syndrome.
An inferior oblique muscle from a patient with Apert's syndrome was examined by light and electron microscopy. Alterations in the muscle fibres, the myoneural junctions, and intramuscular nerves were observed. These data are not compatible with the widespread notion that motility disturbances in this syndrome are solely due to mechanical limitations.
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31. Aetiology and management of the 'detached' rectus muscle.
The clinical features and management of 17 cases of detached extraocular muscles are described. They are classified into four groups: (1) the muscle which is cut and lost during squint surgery, (2) the muscle which breaks during squint surgery, (3) the muscle which slips following squint surgery, and (4) the muscle which is damaged during facial or orbital t
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32. Sheathing of muscle fibres at neuromuscular junctions and at extra-junctional loci in human extra-ocular muscles.
Profuse sheathing of muscle fibres was noticed by chance when studying receptors in samples of extra-ocular muscle taken from orbits of six patients after eye enucleation or in the treatment of squint. The sheaths, previously unreported in any skeletal muscle, were examined by light and electron microscopy and their incidence determined. Muscle spindle capsu
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33. Rat extraocular muscle. 1. Three dimensional cytoarchitecture, component fibre populations and innervation.
Rat superior oblique extraocular muscle was examined in serial sections by light and electron microscopy. By such analysis, it was possible to discriminate single versus multiply innervated fibres, characteristics of the internal structure of fibres, and topographical distribution of the respective fibre populations within the muscle. The superior oblique mu
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34. Ophthalmoplegia in carotid cavernous sinus fistula.
The aetiology of ophthalmoplegia in 15 patients with carotid-cavernous sinus fistula is discussed, and the clinical findings are correlated with angiographic and orbital CT appearances. After closure of the fistula the majority of patients with generalised ophthalmoplegia recovered full ocular movements rapidly, while patients with an isolated abduction weak
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35. Lactate dehydrogenase isoenzyme pattern in the eye muscles. Deviation in myopia.
The lactate dehydrogenase isoenzyme patterns in 46 extraocular eye muscle samples removed at surgery for squint were determined by acrylamide-gel electrophoresis and reduction of NAD coupled with formazan reaction. Muscle type subunits predominated in the isoenzymes of the medial and lateral rectus muscles of emmetropic and hypermetropic eyes, whereas heart
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36. The fastest contracting muscles of nonmammalian vertebrates express only one isoform of the ryanodine receptor.
The skeletal muscles of chickens, frogs, and fish have been reported to express two isoforms (alpha and beta) of the sarcoplasmic reticulum calcium release channel (ryanodine receptor or RYR), while mammals express only one. We have studied patterns of RYR isoform expression in skeletal muscles from a variety of fish, reptiles, and birds with immunological t