![]() The motor nerve connections are on the front of your spinal cord meaning, these nerves are for sending muscle movement commands only. They only carry information away from your brain. Motor: These nerves carry command signals from your brain to various parts of your body.The sensory nerve connections to your spinal cord are on the back of your spinal cord. They either connect directly to your brain through your cranial nerves or carry information to your spinal nerves, which then feed into your spinal cord. Sensory: These nerves carry information to your brain and spinal cord.Some of the nerves in that bundle carry information into your brain, while others carry information out of your brain. This is similar to how multiple strands of spun cloth fibers twist together to form sewing thread. The nerve cells and their axons twist and intertwine together to form nerve fibers. Your nerves consist of bundles of nerve cells, which have long, arm-like extensions called axons. Examples of these processes include your heart rate, breathing, blood pressure and your gut’s digestion of food. Your brain needs your peripheral nervous system to control those functions. Part of your brain is always working, managing processes that keep you alive. Your autonomic nervous system functions without you thinking about it. That allows you to move around and do all kinds of tasks, ranging from simple ones, like scratching your nose, to complicated ones, like juggling. Your peripheral nerves that branch outward throughout your body deliver command signals from your brain to your muscles. The motor nerves allow you to move various parts of your body. The sensory nerves in your hands and feet are also part of your brain’s ability to get information from the outside world. They stretch out everywhere, including to the tips of your fingers and toes. Other peripheral nerves intertwine throughout every part of your body. Your cranial nerves also give you a sense of touch in the skin of your face, head and neck. These nerves carry signals from your nose, ears and mouth, as well as many other organs. Your cranial nerves are unlike other peripheral nerves in that these very special nerves connect directly to your brain. Most of your peripheral nervous system travel to the rest of your body by exiting or entering your spinal cord. Your peripheral nervous system is how your brain gets information about the outside world. A computer needs peripheral devices like a camera, microphone or keyboard to give it information from outside itself, and your brain is the same. That’s why your peripheral nervous system is so important. However, it knows nothing about the world outside your body without outside input. Your brain is like a powerful supercomputer. This job depends on your autonomic nervous system. Examples of this include heartbeat and blood pressure. Unconscious processes: This is how your brain runs critical processes that don’t depend on your thinking about them.This job also falls under the somatic nervous system. Movement: Your peripheral nerves deliver command signals to all the muscles in your body that you can consciously control.This job falls under the somatic nervous system. Senses: Your PNS is a key part of how your brain gets information about the world around you.Those two subsystems are how your peripheral nervous system does its three main jobs: Somatic: These are functions you manage by thinking about them.Autonomic: These are nervous system processes your brain runs automatically and without you thinking about them.Your peripheral nervous system has two main subsystems: autonomic and somatic. ![]() What does the peripheral nervous system do? The term “peripheral” is from the Greek word that means around or outside the center. Your peripheral nervous system is everything else and includes nerves that travel from your spinal cord and brain to supply your face and the rest of your body. Your central nervous system includes two organs, your brain and spinal cord. Your nervous system consists of two main parts: your central nervous system and your peripheral nervous system. ![]() What’s the difference between the peripheral and central nervous systems? Others, like the ones that control movement, are under your control. Some of those signals, like the ones to your heart and gut, are automatic. ![]() It plays key role in both sending information from different areas of your body back to your brain, as well as carrying out commands from your brain to various parts of your body. Your peripheral nervous system (PNS) is that part of your nervous system that lies outside your brain and spinal cord. The peripheral nervous system branches outward from the spinal cord and brain to reach every part of your body. The central and peripheral nervous systems.
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