![]() The brain constantly receives information and sends out instructions to the body through the spinal cord and the body’s vast network of nerves. The brain is the control center of the nervous system. Nerves in the autonomic nervous system regulate involuntary movement, transmitting information between the CNS and the smooth muscles of the body’s internal organs and the cardiac muscle of the heart.Nerves in the somatic nervous system control voluntary movement and activity, transmitting information between the CNS and the skeletal muscles and external sensory organs.The PNS is subdivided into the somatic nervous system and the autonomic nervous system. The function of the peripheral nervous system is to transmit information back and forth between the CNS and the rest of the body. The peripheral nervous system (PNS), consisting of the network of nerves that branch out from the brain and spinal cord. The central nervous system (CNS), made up of the brain and spinal cord. The nervous system is the communications network that controls and coordinates the muscle, organ and sensory function that takes place within our bodies.
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