The relative vascularity of subcortical ganglia of the cat's brain; the putamen, globus pallidus, substantia nigra, red nucleus, and geniculate bodies
✍ Scribed by Heloise Beekman Hough; Harold G. Wolff
- Publisher
- John Wiley and Sons
- Year
- 1939
- Tongue
- English
- Weight
- 443 KB
- Volume
- 71
- Category
- Article
- ISSN
- 0021-9967
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✦ Synopsis
Quantitative studies of the vascularity of the nervous system have shown that various regions differ in their blood supply. Craigie ('20) found that the gray matter is more vascular than the white matter and Cobb ('32) noted that the more cellular layers of the hippocampal region were more richly supplied with capillaries than the stratum radiatum with its smaller cell population. Dunning and Wolff ( '37) found that the parietal cortex of the cerebrum and also the superior cervical sympathetic ganglion in the cat were richer in capillaries than parietal white matter or trigeminal ganglion and nerve. It could be concluded from their studies that those regions with the greatest neural surface areas are more vascular than those regions with less. In other words, the vascularity is richest where the total neural surface area is greatest.
Hiller ('26) pointed out (without actually measuring the capillary length) that the globus pallidus had a sparse distribution of capillaries as compared with the putamen and that within the substantia nigra the red or reticular portion is more comparable to the pallidum in its vascularity, and less vascularized than the compact or cellular zone.
Campbell ( '39) in a statement of quantitative capillary measurements in the cat reported that the basal ganglia are 427