Complement of nervous tissue (neurones, nerves, receptors and support cells) serving to detect, relay and coordinate information about an animal`s internal and external environments and to initiate and integrate its effector responses and activities. |
nervous system
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WBbt:0005735
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neuron with its cell body situated in the head, excluding the pharynx. |
head neuron
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WBbt:0006751
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a group of hypodermal cells that lie along the apical midline of the hypodermis, at the extreme left and right sides between nose and tail |
seam cell
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lateral hypodermis |
WBbt:0005753
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the most extensive region of neuropil in the animal, consists of a large toroidal bundle of processes. |
nerve ring
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circumpharyngeal nerve ring |
WBbt:0006749
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