Quantitative study of the decussating optic axons in the pony, cow, sheep, and pig

Herron, M.A.; Martin, J.E.; Joyce, J.R.; Herron, M.A; Martin, J.E; Joyce, J.R

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Quantitative study of the decussating optic axons in the pony, cow, sheep, and pig

Herron, M.A.; Martin, J.E.; Joyce, J.R.

American Journal of Veterinary Research 39(7): 1137-1139

1978

ISSN/ISBN: 0002-9645

PMID: 677532

Document Number: 127245

Light microscopy was employed to count the fibres. The mean number of fibres projecting from a single eye was 732 119 for the pony, 1 041 739 for the cow, 534 755 for the sheep, and 442 629 for the pig. The mean degree of crossover at the chiasm was 80.8% in ponies, 82.9% in cattle, 88.9% in sheep, and 87.8% in pigs.