POSTNATAL DEVELOPMENT OF SPINAL CORD OF DOG
POSTNATAL DEVELOPMENT OF SPINAL CORD OF DOG
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DOI：
10.1002/cne.901300305
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发表时间：
1967-01-01
影响因子：
2.5
通讯作者：
HIMWICH, WA
中科院分区：
文献类型：
--
作者：
FOX, MW;INMAN, OR;HIMWICH, WA
出生后，犬脊髓中背索、侧索和腹索的髓鞘化在出生后的前三周内迅速发生，但薄束和皮质脊髓侧束除外，其中髓鞘直到五周后才完成。腹侧（运动）灰柱在年轻动物中比相应的背侧柱更发达。腹柱和背柱在5周龄时均达到成年，但侧柱成熟较晚。只有轻微的形态学差异，发现在发展的速度颈段和腰段，后者成熟稍晚。这些研究结果进行了比较，在猫的早期研究，并与狗的反射和运动发育的观察。
The postnatal myelinization of the dorsal, lateral and ventral funiculi in the spinal cord of the dog occurs rapidly during the first three weeks of life, with the exception of the fasciculus gracilis and lateral corticospinal tract in which myelin is not complete until after five weeks. The ventral (motor) grey columns are more developed in younger animals than the corresponding dorsal columns. Both ventral and dorsal columns reach adult from by five weeks of age, but the lateral columns mature later. Only slight morphological differences were found in the rate of development of cervical and lumbar segments, the latter maturing a little later. These findings are compared with earlier studies in the cat, and correlated with observations on reflex and locomotor development of the dog.