| 11. | Some hemichordates also have a tubular nerve cord.
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| 12. | A peripheral nervous system branches out from the nerve cord to innervate the various systems.
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| 13. | From the ganglion there are two nerve cords which extend the length of the tail.
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| 14. | (3 ) Dorsal tubular nerve cord.
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| 15. | In the early embryonic stage, it looks like the hollow nerve cord of chordates.
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| 16. | The symptoms and signs depend upon the nerve cords involved and the extent of the involvement.
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| 17. | They also have dorsal, ventral, and longitudinal nerve cords connected to these longitudinal muscles.
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| 18. | In the American lobster, endogenous morphine is found in the haemolymph and ventral nerve cord.
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| 19. | Artanis initially fell under their control but Zeratul severed his nerve cord, dying in the process.
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| 20. | Although the ventral nerve cord has a ganglion in each segment, the brain is relatively poorly developed.
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