| 单词 | nerve ring |
| 释义 | > as lemmasnerve ring nerve ring n. Zoology a ring of nerves and ganglia encircling the pharynx in various invertebrates. ΘΚΠ the world > animals > animal body > general parts > constituent materials > [noun] > nerves forming ring mouth ring1839 nerve ring1849 nerve collar1874 1849 Philos. Trans. (Royal Soc.) 139 335 Close round this opening are placed the nerve-loops of the neck, and a nerve-ring appears to encircle it as a ganglion. a1933 J. A. Thomson Biol. for Everyman (1934) I. xiv. 354 The spider's nervous system is of the type found in other Arthropods. That is to say, there is a dorsal brain, connected by a nerve-ring round the gullet with the ventral centres or nerve-ganglia. 1995 C. Nielsen Animal Evol. viii. 55 The nervous system is intraepithelial, forming nerve nets which may be concentrated in nerve rings in both polyps and medusae and in ganglia in scyphomedusae. < as lemmas |
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