Morphological observations on the subependymal layer of swine brain
1988
Kwak, S.D. (Kyeongsang National Univ., Chinju (Korea R.). Coll. of Agriculture)
Normal swine brains at 1 to 70 days after birth were used to investigate the presence and morphology of the subependymal layer (SL) in the ventricle walls. The brain samples were taken from 27 pigs of 4 swine breeds. SLs were observed on the walls of the lateral ventricle (LV) but none were observed on the walls of the 3th and 4th ventricles. SLs of the LV walls were composed of mainly 3-to 10-cell layers in thickness. The thinnest region of SLs was composed of only 1-to 2-cell thick on the dorsal and ventral walls, and the thickest region was composed of 250-to 300-cell thick on extension region of the SLs into the angle between the corpus callosum and caudate nucleus. SLs were extensively thick in young age but gradually decreased in size and cell number with age after 20-day age. SL layers were composed of mainly oligodendrocytes, astrocytes and immature cells of them. Morphological differences of SL in different breeds of pigs were not observed.
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