Nervous system
The nervous system of an animal coordinates the activity of the muscles, monitors the organs, constructs and processes input from the senses, and initiates actions. (see Central Nervous System).
Related Topics:
Animal - Muscle - Organ - Sense - Action - Central Nervous System
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In animals without brains, the nervous system does not generate or conduct thoughts and emotions. Thus it is the system that animates "animals" (sponges are an exception). Chemicals that target the activity of nerves generally are the most rapidly acting toxins, typically causing paralysis and/or death.
Related Topics:
Brain - Sponge - Nerve - Toxins - Paralysis
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~ Table of Content ~
| ► | Introduction |
| ► | Vertebrate nervous systems |
| ► | See also |
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