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3 de nov. de 2023 · The nervous system is a network of neurons whose main feature is to generate, modulate and transmit information between all the different parts of the human body. This property enables many important functions of the nervous system, such as regulation of vital body functions (heartbeat, breathing, digestion), sensation and body movements.
- Overview
- Function
- Anatomy
- Conditions and Disorders
- Care
Your nervous system plays a role in everything you do. The three main parts of your nervous system are your brain, spinal cord and nerves. It helps you move, think and feel. It even regulates the things you do but don’t think about like digestion. It contains the central nervous system and the peripheral nervous system.
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OverviewFunctionAnatomyConditions and DisordersCare
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What does the nervous system do?
Your nervous system’s main function is to send messages from various parts of your body to your brain, and from your brain back out to your body to tell your body what to do. These messages regulate your: Thoughts, memory, learning and feelings. Movements (balance and coordination). Senses (how your brain interprets what you see, hear, taste, touch and feel). Wound healing. Sleep. Heartbeat and breathing patterns. Response to stressful situations, including sweat production. Digestion. Body processes, such as puberty and aging.
What are the parts of the nervous system?
The nervous system has two main parts: Central nervous system (CNS): Your brain and spinal cord make up your CNS. Your brain reads signals from your nerves to regulate how you think, move and feel. Peripheral nervous system (PNS): Your PNS is made up of a network of nerves. The nerves branch out from your spinal cord. This system relays information from your brain and spinal cord to your organs, arms, legs, fingers and toes. There are two parts to your peripheral nervous system: The somatic nervous system guides your voluntary movements. The autonomic nervous system regulates the activities you do without thinking about them (involuntary movements). Advertisement
What does the nervous system look like?
Nerve cells (neurons) are the basis of your nervous system. There are 100 billion neurons in your brain. These cells connect throughout your entire body. Imagine your nervous system as a tree. Your central nervous system is the trunk of the tree that contains your brain and spinal cord. The tree branches are your peripheral nervous system (nerves). The branches extend from the truck (brain and spinal cord) to reach all parts of your body.
What are common conditions or disorders that affect the nervous system?
There are many conditions that affect your nervous system. Some of the most common include: Alzheimer’s disease. Cancer. Cerebral palsy. Epilepsy. Huntington’s disease. Infection (meningitis). Parkinson’s disease. Stroke. Traumatic brain injury.
How are conditions that affect the nervous system treated?
A healthcare provider will review your symptoms to diagnose and treat any conditions that affect your nervous system. Treatment varies for each condition. So, your healthcare provider will take into consideration several factors, like your age and general health, to create your treatment plan. This plan may include: Taking medications. Having surgery. Participating in counseling for mental and emotional support. Receiving supportive care (to keep you comfortable).
How do I keep my nervous system healthy?
You can keep your nervous system healthy by: Seeing a healthcare provider regularly. Maintaining good health (like eating balanced foods). Avoiding harmful substances (like not smoking tobacco). Wearing protective gear or equipment (a helmet) when playing sports or participating in certain activities. Managing any underlying health conditions.
A note from Cleveland Clinic
Your nervous system is the command center for your entire body. It helps you think, learn, move and remember. This vast network of nerves connects to all of your organs, muscles and glands. It needs care to keep working. Sometimes, unexpected events can affect your nervous system, like an infection, injury or underlying condition. A healthcare provider can help you stay healthy so your nervous system has all it needs to function as expected. Medically Reviewed Last reviewed by a Cleveland Clinic medical professional on 11/16/2023. Learn more about our editorial process.
The nervous system has two main parts: The central nervous system is made up of the brain and spinal cord. The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.
Hace 5 días · nervous system, organized group of cells specialized for the conduction of electrochemical stimuli from sensory receptors through a network to the site at which a response occurs. Follow the electrical and chemical changes undergone to transmit an impulse through the human nervous system.
5 de feb. de 2018 · The nervous system has two major parts: the central nervous system (CNS) and the peripheral nervous system (PNS). The central system is the primary command center for the...
The nervous system can be divided into two parts mostly on the basis of a functional difference in responses. The somatic nervous system (SNS) is responsible for conscious perception and voluntary motor responses.
13 de feb. de 2017 · The nervous system in a human is made of the brain, spinal cord, sensory organs and all the neurons that serve as communication channels between the various organs of the body. It is primarily made of a single type of cell called the neuron. Colloquially, they are also called nerve cells.
