XB-IMG-137940
Xenbase Image ID: 137940
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Fig. 9. Summary drawing of the motor nuclei and root
positions of cranial nerves III, IV, V, VI, VII, IX and X in
the Xenopus tadpole hindbrain. Normal (right) and RAtreated
(left) specimens. Information on controls was
collated from 24 stage 39-46 embryos, 7 of which had the
preotic ganglia of V and VII as well as the roots of IV and
VI filled with HRP. A set of 14 embryos had the tracts and
nuclei of IX and X filled by a postotic ganglion HRP
application and the remaining three embryos had both
preotic and contralateral postotic ganglia HRP applications.
The description of the relevant neuroanatomy of control
embryos was derived from complete whole-mounted
specimens and horizontally or transversely sectioned
embryos. The observations are in agreement with previous
neuroanatomical descriptions based on architectonics and
neuronal tracing (see Matesz and Szekely, 1978; Will, 1982;
Nikunwe and Nieuwenhuys, 1983). The RA data is derived
from 24 treated embryos of comparable stages to controls.
Of these, 11 were preotic HRP applications, 5 were
postotic and 8 were combination fills with preotic on one
side and postotic on the other. 16 of these specimens were
sectioned (horizontally or transversely) and 8 were viewed
as whole-mounts. Image published in: Papalopulu N et al. (1991) Copyright © 1991. Image reproduced with permission of the publisher and the copyright holder. This is an Open Access article distributed under the terms of the Creative Commons Attribution License. Larger Image Printer Friendly View |