Distribution of retinal ganglion cells in five mammalian species (pig, sheep, ox, horse, dog)
✍ Scribed by Rudolf Hebel
- Publisher
- Springer
- Year
- 1976
- Tongue
- English
- Weight
- 431 KB
- Volume
- 150
- Category
- Article
- ISSN
- 0340-2061
No coin nor oath required. For personal study only.
✦ Synopsis
In order to ascertain shape and location of the central area, the distribution of ganglion cells was measured in whole mounts of the retina from pig, sheep, ox, horse, and dog. Although exact comparison of corresponding points of measurement in different animals was not possible, the measurements allowed the mapping of retinal ganglion cell density, typical for the particular species. In all ungulates a streak of high cell density extends along a straight horizontal line, dorsal to the optic disc. As a rule a maximum of ganglion cell density is found close to the temporal end of the visual streak. In the dog a well demarcated oval portion of the streak continues into a short temporal (variable) and a long nasal linear arm. The functional significance of these findings is discussed.