The nervous system is responsible for doing this.
The peripheral nervous system is made up of all the nerves outside the central nervous system.
Nervous tissue or Nerve Tissue
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It processes the outside information throught the nervous system. It sends signals to and from the nervous system.
The nervous system controls the body's reactions to outside stimuli and internal changes by sending electrical signals through neurons. These signals help coordinate actions like movement, sensation, and organ function.
central nervous system
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Automatic unconscious responses to changes occurring within or outside the body are often mediated by the autonomic nervous system. Examples include changes in heart rate, dilation or constriction of blood vessels, and regulation of breathing rate in response to stress, temperature changes, or physical activity. These responses are important for maintaining homeostasis and adapting to different environmental conditions.
In the peripheral nervous system, which is outside the central nervous system (CNS), collections of nerve cell bodies are called ganglia.
The brain and spinal cord are referred to as the central nervous system; the rest of the nervous system is called the peripheral nervous system.
The peripheral nervous system is the nervous system outside of the brain and spinal cord. The two categories belonging to the peripheral nervous system are nerves and ganglia.