The vertebrate nervous system can be organized into two main systems: the central nervous system (CNS) and the peripheral nervous system (PNS). A. Which of the following terms and phrases describe structures or actions of the CNS? B. Which describe structures or actions of the PNS? Drag each word or phrase to the appropriate bin. C. If the word or phrase applies to both the central nervous system and peripheral nervous system, drag it to the "both CNS and PNS" bin.