The ectostriatum is a major visual component of the avian telencephalon. The core region of the ectostriatum (Ec) receives visual input from the optic tectum through thalamic nuclei. In the present study, the efferent projections of the ectostriatum were investigated by using the anterograde tracer
Morphologic study of the efferent ductules of the pigeon (Columba livia)
✍ Scribed by Maíra A. Stefanini; Antonio M. Orsi; Elisa A. Gregório; Maria José S. Viotto; Silvana M. Baraldi-Artoni
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 593 KB
- Volume
- 242
- Category
- Article
- ISSN
- 0362-2525
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✦ Synopsis
The efferent ductules of the pigeon are localized in the epididymal region and are topographically divided into proximal and distal, both portions being lined with stereociliated pseudostratified epithelium. Transmission electron microscopy shows five distinct cell types: light, dark, and angular non-ciliated cells with possible apocrine secretory role cells and halo cells, possibly intraepithelial leucocytes. The proximal efferent ductules have the widest diameter among all ductules in the epididymal region.
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