Neurology News, Brain, Surgery

* Neurology101 SEARCH *

*Filter: "Nervous-System"

Nervous System: What It Is, Parts, Function & Disorders
Your nervous system is made up of your brain, spinal cord and nerves. It carries messages between your brain and the rest of your body.

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
Learn about the human nervous system, its parts, types, functions, disorders, and how it compares to other species.

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.

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.

Central Nervous System (CNS): What It Is & Function
Your central nervous system (CNS) is a processing center that manages everything that your body does, from your thoughts and feelings to your movements. Your brain and spinal cord are “central” to your CNS because they take in and send out information to your entire body.

Central nervous system - Wikipedia
A map over the different structures of the nervous systems in the body, showing the CNS, PNS, autonomic nervous system, and enteric nervous system. The PNS consists of neurons, axons, and Schwann cells.

12.1Basic Structure and Function of the Nervous System
The nervous system can be divided into two major regions: the central and peripheral nervous systems. The central nervous system (CNS) is the brain and spinal cord, and the peripheral nervous system (PNS) is everything else (Figure 12.2).

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.

Human Nervous System - GeeksforGeeks
The Human Nervous System is a network of specialised cells and tissues that includes the brain, spinal cord, and a complex network of peripheral nerves. It is responsible for receiving, transmitting, and processing information within the body.

* Neurology101 LATEST NEWS *

                    *Filter: "Nervous-System"

Two in five people in the Americas live with a neurological disorder, new study finds  Pan American Health Organization (PAHO)
Immune system may attack nervous system in some Long COVID patients  National Institutes of Health (NIH) | (.gov)
The Involvement of the Peripheral Nervous System in Parkinson's Disease: Mechanistic and Diagnostic Implications  frontiersin.org
Legionnaires’ Disease: Evaluating Its Neurological Impact  EMJ
Finding Disease in the Abstract  School of Medicine | University of Utah
New GBD Analysis Shows Neurological Conditions Affect Over 180 Million People in the U.S.  World Federation of Neurology
The massive, hidden burden of neurological disorders  YaleNews
What is ALS? A Neurologist Explains Early Signs and a Promising New Treatment  NewYork-Presbyterian
How do seasonal weather changes affect people with neurological disorders?  brainhealth.com
Functional Neurological Disorder, Reframed  Harvard Medicine Magazine
John Hughlings Jackson | Neurology, Epilepsy, Psychiatry  Britannica
Myelin sheaths in the central nervous system can withstand damage and dynamically remodel  Science | AAAS
11 Symptoms Neurologists Say Never to Ignore  Time Magazine
ALS is Driven by a Domino‑Like Chain Reaction That Begins in Nerve Cells  Northwestern University
Autonomic nervous system: an integrative regulator in circadian rhythm of blood pressure  frontiersin.org

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.