Organization of the optic chiasm in the hatched chick
| العنوان: | Organization of the optic chiasm in the hatched chick |
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| المؤلفون: | U. Drenhaus, G. Rager |
| المصدر: | The Anatomical Record. 234:605-617 |
| بيانات النشر: | Wiley, 1992. |
| سنة النشر: | 1992 |
| مصطلحات موضوعية: | Optic tract, education, Optic chiasm, Optic Nerve, Anatomy, Biology, Agricultural and Biological Sciences (miscellaneous), Axons, Microscopy, Electron, medicine.anatomical_structure, Optic Chiasm, health services administration, medicine, Optic nerve, Optic chiasma, Animals, Blood supply, Axon, Chickens, Neuroglia, health care economics and organizations |
| الوصف: | In the hatched chick the fibers of the two optic nerves segregate into clearly defined bundles when they cross to the other side. These bundles run in horizontally oriented tiers. The tiers are demarcated by blood vessels and pial tissue. The organization of these tiers was investigated qualitatively and quantitatively using light and electron microscopy as well as tracer techniques. The fibers within the tiers cross to the contralateral optic tract without leaving their respective tier. The mean total number of tiers is 34 with a great individual variation. A preference in the superposition of one side over the other could not be observed. Comparing these data with our earlier study (Rager et al.: Anat. Embryol., 179:135–148, 1988) it can be concluded that neither the segregation of fibers into discrete bundles nor the variability in the number of alternating tiers seem to disturb the topography of fibers as it is achieved in the optic nerve. The pattern of vascularization correlates with the order of crossing axon bundles and contributes to the demarcation of the tiers. The chiasm is vascularized by the Aa. preopticae and the A. infundibularis.© Willey-Liss, Inc. |
| تدمد: | 1097-0185 0003-276X |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb3eeab6be55fc0381260f08886c8a0dTest https://doi.org/10.1002/ar.1092340416Test |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi.dedup.....bb3eeab6be55fc0381260f08886c8a0d |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10970185 0003276X |
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