a tube of ectodermal tissue in the embryo from which the brain and spinal cord develop
双语例句
1
Eating folic acid, present in leafy green vegetables, ensures that the fetus has the nutrients it needs to grow the casing to the neuraltubes that link the brain to the rest of the body.
吸收叶状绿色植物中的叶酸使胎儿得到神经套管生长的营养。而神经套管是用来连接脑部和身体的其它部分。
2
METHODS: cranial neuraltubes were dissected from 8.5 day mouse embryo using trypsin digestion and explanted in culture dishes. Cells dissociated from the neuraltubes were cranial neural crest cells.