Assertion: peripheral nervous system | /r/MadeOf | 31 pairs of nerves
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Source sentences:
text: To regulate the activities of all the other systems in the body, the nervous system has three main components: the central nervous system (consisting of the brain and spinal cord), the peripheral nervous system (consisting of 31 pairs of nerves from the spinal cord and 12 pairs of nerves from the brain; these nerves extend to other parts of the body), and the autonomous nervous system (which regulates internal organs without the involvement of the conscious mind).