摘要
对９～４１周的１９３例胎儿尸体分别就脊髓和脊柱的颈、胸、腰、骶尾各部及全长的逐月发育情况进行了测量。求得了脊髓和脊柱从胎龄３个月至出生期间８个不同月龄的发育数据。脊髓与脊柱的发育在早期较快，６个月（２１～２４周）之后逐渐减慢下来。脊髓与脊柱各部发育都不平衡。脊髓的增长率显示了从上到下渐次减少的趋势，即颈髓及胸髓较快，腰髓及骶尾髓较慢。而脊柱则是颈椎最慢，腰椎最快。由于发育速率的不同，导致二者的差额从３个月的５．７５ｍｍ增加到出生时的８５．６０ｍｍ。脊髓发育的性别差异不明显。
fetus cadavers were collected. The developmental state of the spinal cords and vertebral columns in cervical, thoracic, lumbar, sacro-coccygeal and the overall length from 9th to 41th weeks were measured by month of pregnancy. The development rates of the spinal cord and the spinal column are faster in the early stage and slow down gradually at the 6th month(from 21st weeks to 24th weeks). The development rate is unequal. The growth velocity of the spinal cord was show down from upper to the lower segment, i. e, cervical and thoracic regiones were faster, lumbar and sacro-coccygeal regions slower. The developmental situation of spinal column in cervical region was the slowest and lumbar region the fastest. Owing to the difference of growtn of the spinal cord and the spinal column result in difference between them is increased from 5.75mm to 85.60mm from the 3rd fetal month to birth. The sexual difference of the development of spinal cord is not obvious. Author's address: (Department of Anatomy, Inner Mongolia Medical College, Hohhot, 010059)
出处
《中国脊柱脊髓杂志》
CSCD
1995年第3期119-121,共3页
Chinese Journal of Spine and Spinal Cord
关键词
脊髓
脊柱
发育
胎儿
测量
Spinal Cord
Spinal column
Development
Fetus
Measurement
