释义 |
neural tube noun[ C ] anatomy specializeduk /ˌnjʊə.rəl ˈtʒuːb/ us /ˌnʊr.əl ˈtuːb/ a structure in the embryos(= babies before they are born) of humans and some animals that develops into the brain and spinal cord: neural tube defectThere's been a 25 percent drop in neural tube defects (= conditions caused by the neural tube not developing correctly). This is the neural tube, from which the entire nervous system develops. The cerebral hemispheres develop from the front portion of the neural tube. Developmental errors in neural tube closure lead to profound disturbances of the nervous system. The proportion of babies born with defects in the neural tube, the part of the foetus that becomes the spinal cord and brain, dropped by 78%. SMART Vocabulary: related words and phrases The brain & nervous system abducens nerve abducent nerve accessory nerve alexithymia allism glossopharyngeal nerve grey matter hemispheric hemispherical hindbrain neurogenic neurogenically neuroglia neuroglial neurohormonal reticular formation rhinencephalon rhombencephalon right brain right-brained |