The nervous system is a complex biological network that facilitates communication and control throughout the human body.
It comprises two primary components: the central nervous system (CNS), which includes the brain and spinal cord, and the peripheral nervous system (PNS), encompassing nerves and ganglia outside the CNS.
Neurons, specialized cells, transmit electrical and chemical signals, enabling functions such as sensation, movement, cognition, and autonomic processes like heartbeat.
The nervous system coordinates bodily activities, responding to stimuli and regulating various physiological functions, making it essential for overall health and function.