英语释义

1. the pair of closely united ventral longitudinal nerves with their segmental ganglia that is characteristic of many elongate invertebrates (such as earthworms)

2. the dorsal tubular cord of nervous tissue above the notochord of a chordate that comprises or develops into the central nervous system

3. the dorsal tubular cord of nervous tissue above the notochord of a chordate that in vertebrates includes or develops an anterior enlargement comprising the brain and a more posterior part comprising the spinal cord with the two together making up the central nervous system

片语

lateral nerve cord[昆]

ganglionated nerve cord神经结索

abdominal nerve cord腹神经索

longitudinal nerve cord纵神经索

nerve e cord神经索

ventral nerve cord[昆] 腹神经索

buccal nerve cord口神经索

dorsal nerve cord背神经索

longitudinal impedance nerve cord纵神经索

英汉例句

• a central nervous system—in which specialised sensory and motor nerve cells are clumped together into a nerve cord and brain—is usually the mark of more recent evolution.

  中央神经系统通常是更具现代特征的进化标志, 因为其中有一些感觉神经细胞与行动神经细胞, 它们牢牢地结合在一起组成了神经索与大脑.

• the ventral nerve cord is covered externally by a peritoneum.

  腹神经线外被以腹膜。

• the ventral nerve cord of the crab in the embryo included 1 pair mandibular neuromere, 2 pairs neuromeres of maxillae, 2 pairs neuromeres of maxillipede and abdomen nerve cord.

  三疣梭子蟹胚胎期腹神经链由1对大颚、2对小颚和2对颚足所对应的神经节以及腹部神经链组成。

• the central nervous system was composed of brain and ventral nerve cord in the embryo stage of the swimming crab.

  腹部神经链则在第三期卵内状幼体阶段观察到。

• results neurofibroma normally grows in two ways:along nerve cord and in plexiform.

  结果神经纤维瘤常见沿神经干生长及丛状生长二种类型。

• thus, they neatly side-stepped the problem of explaining how the nerve cord got from the worm「s tummy to the vertebrate」s back.

  如此说来,他们只是在逃避回答神经网是如何从蠕虫的腹部进而发展到了脊椎动物的背部.