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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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anterior-most body region containing the pharynx. |
head
|
|
WBbt:0005739
|
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lies within the body wall, in close relation to nervous system and excretory system. |
epithelial system
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WBbt:0005730
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exterior tube of two concentric tubes that make up the body, includes the epidermal cells and the attached neurons and muscles. |
body wall
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|
WBbt:0005742
|
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body region surrounding the anus. |
anal region
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|
WBbt:0006919
|
