The nervous system is a system of nerves and nervous tissue whose main function is to generate, transmit and interpret neural impulses from and to other body systems. The nervous system is divided into the central and peripheral nervous systems.
The brain and spinal cord are the main parts of the central nervous system, while the peripheral nervous system includes nerves that connect to every organ and tissue in your body.
The main cells of the nervous system are called neurons, or nerve cells.
The brain controls all bodily functions, including muscle movement, sensory perception and heart rate.
The spinal cord connects your brain to nerves in your body below the neck, passing information between them as electrical impulses that travel along nerve fibers called axons.
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