The retinotectal projections after uncrossing the optic chiasma in Xenopus with one compound eye.
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چکیده
منابع مشابه
Interactions between compound and normal eye projections in dually innervated tectum: a study of optic nerve regeneration in Xenopus.
Right compound eyes were formed in Xenopus embryos at tailbud stages by the fusion of two nasal (NN), two temporal (TT) or two ventral (VV) halves. The left eye was kept intact. Two to four weeks after metamorphosis the optic nerve from the intact eye was severed to induced bilateral optic nerve regeneration. The contralateral retinotectal projections from the compound eye and the induced ipsil...
متن کاملSpreading of hemiretinal projections in the ipsilateral tectum following unilateral enucleation: a study of optic nerve regeneration in Xenopus with one compound eye.
Right compound eyes were formed in Xenopus embryos at stages 32-33 by the fusion of two nasal (NN), two ventral (VV) or two temporal (TT) halves. Shortly after metamorphosis the optic nerve from the compound eye was sectioned and the left intact eye removed. The retinotectal projections from the compound eye to the contralateral and ipsilateral tecta were studied by [3H]proline autoradiography ...
متن کاملThe development of the retinotectal projections from compound eyes in Xenopus.
The retinotectal projections from double-nasal (NN), double-temporal (TT) and double-ventral (VV) compound eyes in Xenopus were studied autoradiographically and electrophysiologically during development. Early TT projections were confined to rostrolateral tectum and spread with advancing age to cover most of the tectum by shortly after metamorphosis. Early VV projections showed a decreased dens...
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The extent, and the development, of the ipsilateral retinothalamic projection in the frog Xenopus laevis have been studied using terminal degeneration and autoradiographic techniques. This ipsilateral projection derives only from those retinal areas receiving visual information from the binocular portion of the visual field. In Xenopus, the ipsilateral retinothalamic projection arises from a la...
متن کاملThe formation of the optic fibre projection after partial tectal removal in Xenopus.
The formation of retinotectal connexions in Xenopus has been investigated by mapping the visual field projections of animals after various partial tectal removals. Following removal of a sufficiently extensive piece of the left rostral, caudal, medial or lateral tectum with, in addition, section of the contralateral optic nerve, a consistent defect in the nasal, temporal, superior or inferior v...
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عنوان ژورنال:
- Journal of embryology and experimental morphology
دوره 26 3 شماره
صفحات -
تاریخ انتشار 1971