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Nervous System: What It Is, Parts, Function & Disorders
What is the nervous system? Your nervous system is your body’s command center. It’s made up of your brain, spinal cord and nerves. Your nervous system works by sending messages, or electrical signals, between your brain and all the other parts of your body. These signals tell you to breathe, move, speak and see, for example.

Nervous system - Wikipedia
The nervous system consists of nervous tissue which, at a cellular level, is defined by the presence of a special type of cell, called the neuron. Neurons have special structures that allow them to send signals rapidly and precisely to other cells.

Nervous System - Science Notes and Projects
The nervous system is the complex network of specialized cells and tissues that coordinate the body’s activities by transmitting signals to and from different parts of the body. It is responsible for perceiving sensory stimuli, processing information, and generating responses that maintain homeostasis and support functions such as movement, thought, emotion, and autonomic regulation. This ...

Nervous system | Definition, Function, Structure, & Facts | Britannica
Nervous system, organized group of cells specialized for the conduction of electrochemical stimuli from sensory receptors. The nervous system allows for the almost instantaneous transmission of electrical impulses from one region of the body to another. Learn about the nervous systems of different living organisms.

Central nervous system - Wikipedia
The central nervous system (CNS) is the part of the nervous system consisting primarily of the brain and the spinal cord. The retina is also technically part of the CNS. [2] The CNS is named so because the brain integrates the received information and coordinates and influences the activity of all parts of the bodies of bilaterally symmetric and triploblastic animals —that is, all ...

What is the Nervous System? - News-Medical.net
The nervous system is a complex network of neurons and cells that carry messages to and from the brain and spinal cord to various parts of the body.

Central Nervous System (CNS): What It Is & Function
What does the central nervous system look like? Your central nervous system looks like a balloon. Your brain is the round, inflated balloon. Your spinal cord is the string attached to the balloon. Your brain and spinal cord are held within bone structures, connective tissue (meninges) and fluid (cerebrospinal fluid), which protects them.

Human nervous system | Description, Development, Anatomy, & Function ...
The human nervous system is the series of cells and nerve tracts that conduct stimuli from sensory receptors in the periphery to receptors in the brain and spinal cord and then conduct impulses back to other body parts.

Human Nervous System: Diagram, Parts, Functions and How It Works
Understand the human nervous system with a labeled diagram, its central and peripheral parts, major functions, neurons, nerve signaling, and reflex actions.

Central Nervous System (CNS): Structure & Main Functions
The Central Nervous System (CNS) consists of the brain and spinal cord. It acts as the body's control center, processing sensory information and directing responses. The CNS coordinates both voluntary activities, like movement, and involuntary ones, such as breathing and heartbeat.

* Neurology101 LATEST NEWS *

                    *Filter: "Nervous-System"

Novel transporter protein discovery opens new pathways for central nervous system therapies  News-Medical
Here’s how an MS misdiagnosis can happen, according to experts  The Washington Post
Functional Neurological Disorder, Reframed  Harvard Medicine Magazine
Central nervous system and systemic inflammatory networks associated with acute neurological outcomes in COVID-19  Nature
Climate change and disorders of the nervous system  The Lancet
What Are the Functions of Zinc in the Nervous System?  Neurology® Journals
How COVID-19 Affects the Nervous System  UCLA Health
11 million lives lost each year: urgent action needed on neurological care  World Health Organization (WHO)
What Is the Role of Dispanins in the Nervous System?  Neurology® Journals
Treatment of Neurological Disorders  University of Pittsburgh Medical Center
Long-term neurologic outcomes of COVID-19  Nature
New CTE study puts estimate at 75% for former pro football players  Nonstop Local News
Christina Applegate says she was misdiagnosed with MS  ABC News - Breaking News, Latest News and Videos
Director's Corner  National Institute of Neurological Disorders and Stroke (.gov)
Primary central nervous system vasculitis associated with lymphoma  Neurology® Journals

Common Neurological Symptoms & Warning Signs

Persistent or Sudden Severe Headaches — Onset of unusually intense headaches, sudden thunderclap onset, or chronic pain accompanied by nausea and visual disruptions.
Numbness, Tingling, or Paresthesia — Loss of sensation, burning, or a "pins and needles" feeling in the extremities, often signaling peripheral neuropathy or nerve compression.
Focal Muscle Weakness or Paralysis — Sudden or progressive loss of muscle strength, facial drooping, or difficulty lifting objects, commonly associated with stroke or nerve disorders.
Seizures and Convulsions — Sudden, uncontrolled electrical disturbances in the brain leading to involuntary muscle spasms, loss of consciousness, or brief absence spells.
Vertigo, Dizziness, and Loss of Balance — Sensations of spinning, unsteady gait, or uncoordinated movement (ataxia), pointing toward vestibular or cerebellar dysfunction.
Cognitive Decline and Memory Impairment — Uncharacteristic confusion, difficulty retrieving words, disorientation, or short-term memory loss impacting daily functioning.
Visual Disturbances and Diplopia — Unexplained double vision, temporary loss of vision in one eye, or sudden blurred vision stemming from optic nerve issues or brain lesions.
Dysarthria and Speech Difficulties — Slurred speech, trouble articulating words, or difficulty comprehending spoken language due to motor speech pathway impairment.

Key Milestones in the History of Neurology

Edwin Smith Papyrus (c. 1600 BCE) — The earliest known medical document describing brain anatomy, cranial sutures, and meninges, detailing head trauma cases in ancient Egypt.
Hippocratic Corpus (c. 400 BCE) — Hippocrates challenged mystical beliefs by identifying the brain, rather than the heart, as the seat of human intelligence, sensation, and emotion.
Vesalius and De Humani Corporis Fabrica (1543) — Andreas Vesalius provided detailed anatomical drawings of the human nervous system, correcting centuries of Galenic anatomical errors.
Discovery of Cerebral Localization (1861) — Paul Broca demonstrated localized speech production functions in the frontal lobe through post-mortem studies of aphasic patients.
Establishment of the Neuron Doctrine (1891–1906) — Santiago Ramón y Cajal and Camillo Golgi revealed that the nervous system consists of discrete individual cells rather than a continuous net.
Invention of Electroencephalography (1924) — Hans Berger recorded the first human brain waves (EEG), revolutionizing epilepsy diagnosis and sleep cycle monitoring.
Development of Neuroimaging Techniques (1970s–1980s) — Godfrey Hounsfield developed Computed Tomography (CT) and Raymond Damadian pioneered MRI, transforming non-invasive brain visualization.
Discovery of Neuroplasticity (Late 20th Century) — Researchers demonstrated that the adult brain reorganizes neural pathways in response to learning, environmental changes, and injury recovery.

Current Neurology Research & Breakthroughs

Blood-Based Biomarkers for Early Alzheimer's Detection — Advances in blood tests tracking amyloid and tau levels allow for faster, non-invasive diagnosis before major cognitive decline occurs.
Adaptive Deep Brain Stimulation (aDBS) in Parkinson's — Closed-loop DBS systems now record real-time neural activity to dynamically adjust stimulation, significantly improving motor fluctuations.
Disease-Modifying Gene Therapies for Neurodegeneration — Novel viral vector therapies target genetic root causes to slow progression in rare conditions like Huntington's disease and ALS.
Precision Immunotherapies for Neuromuscular Disorders — Targeted monoclonal antibody treatments offer faster-acting, long-term disease management for autoimmune conditions like Myasthenia Gravis and CIDP.
Brain-Computer Interfaces (BCI) for Paralysis Recovery — High-density microelectrode arrays decode neural intent into real-time digital text and prosthetic movement for spinal cord injury patients.
Neuroinflammation and Microglial Modulation in Stroke — Investigational therapies focusing on microglial activation show promise in minimizing secondary brain injury following acute ischemic events.
Focused Ultrasound (FUS) Blood-Brain Barrier Opening — Non-invasive MRI-guided ultrasound temporarily opens the blood-brain barrier to deliver targeted chemotherapies directly into brain tumors.
Single-Cell RNA Sequencing in Epilepsy Therapeutics — Transcriptomic profiling identifies specific neuronal subpopulations causing drug-resistant seizures, opening pathways for targeted drug design.