Nerve

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A nerve is an enclosed, cable-like bundle of peripheral axons (the long, slender projections of neurons). A nerve provides a common pathway for the electrochemical nerve impulses that are transmitted along each of the axons. Nerves are found only in the peripheral nervous system. In the central nervous system, the analogous structures are known as tracts. Neurons are sometimes called nerve cells, though this term is technically inaccurate since many neurons do not form nerves, and nerves also include non-neuronal Schwann cells that coat the axons in myelin.

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News tagged with nerve

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Up a little on the left... now, over to the right... Scientists find a source of nonallergic itch

Medicine & Health / Research

created 6 hours ago | popularity 4 / 5 (1) | comments 0

Scratching below the surface of a troublesome sensation that's equal parts tingle-tickle-prickle, sensory scientists from Johns Hopkins have discovered in mice a molecular basis for nonallergic itch.


New insight in nerve cell communication

New insight in nerve cell communication

Medicine & Health / Neuroscience

created 4 hours ago | popularity not rated yet | comments 0

Communication between nerve cells is vital for our bodies to function. Part of this communication happens through vesicles containing signalling molecules called neurotransmitters. The vesicle fuses with the ...


Clinical Trial Examines Drug?s Potential for Protecting the Optic Nerve

Clinical Trial Examines Drug's Potential for Protecting the Optic Nerve

Medicine & Health / Research

created 23 hours ago | popularity not rated yet | comments 0

(PhysOrg.com) -- Acute optic neuritis, an inflammation of the optic nerve, doesn't occur all that often. But for those who experience it, the vision loss, pain and nerve damage that often result are no small ...


Researchers show brain waves can 'write' on a computer in early tests

Medicine & Health / Research

created Dec 07, 2009 | popularity 4.9 / 5 (18) | comments 3

Neuroscientists at the Mayo Clinic campus in Jacksonville, Fla., have demonstrated how brain waves can be used to type alphanumerical characters on a computer screen. By merely focusing on the "q" in a matrix of letters, ...


Glutamate can play key role in drug impact on brain

Medicine & Health / Neuroscience

created Dec 16, 2009 | popularity not rated yet | comments 1

(PhysOrg.com) -- Addiction disorders of various kinds are a major health and social problem, and our knowledge of how the brain’s reward system functions needs to be enhanced. Uppsala researchers now shows an unexpected effect ...


A mathematical model of a simple circuit in a chicken brain raises fundamental questions about our understanding of neural circu

Mathematical model of a simple circuit in a chicken brain raises fundamental questions

Physics / General Physics

created Dec 01, 2009 | popularity 4.6 / 5 (28) | comments 17

(PhysOrg.com) -- The Web site Neuroanthropology asks visitors to complete this quote, "One of the difficulties in understanding the brain is ...". In addition to the typical facetious remarks, such as "so ...


Discovery of new gene called Brd2 that regulates obesity and diabetes

Chemistry / Biochemistry

created Dec 15, 2009 | popularity 4.5 / 5 (2) | comments 0

The chance discovery of a genetic mutation that makes mice enormously fat but protects them from diabetes has given researchers at Boston University School of Medicine, USA, new insights into the cellular mechanisms that ...


Tiny molecule slows progression of Lou Gehrig's disease in mice

Medicine & Health / Research

created Dec 10, 2009 | popularity not rated yet | comments 0

Researchers at UT Southwestern Medical Center have found that a molecule produced naturally by muscles in response to nerve damage can reduce symptoms and prolong life in a mouse model of amyotrophic lateral sclerosis (ALS). ...


Researchers finds hidden sensory system in the skin

Medicine & Health / Research

created Dec 08, 2009 | popularity 4.9 / 5 (15) | comments 1

Researchers report that the human body has an entirely unique and separate sensory system aside from the nerves that give most of us the ability to touch and feel. Surprisingly, this sensory network is located throughout ...


Green tea chemical combined with another may hold promise for treatment of brain disorders

Chemistry / Biochemistry

created Dec 03, 2009 | popularity 4.8 / 5 (5) | comments 2

Scientists at Boston Biomedical Research Institute (BBRI) and the University of Pennsylvania have found that combining two chemicals, one of which is the green tea component EGCG, can prevent and destroy a variety of protein ...


Lifelong memories linked to stable nerve connections

Lifelong memories linked to stable nerve connections

Medicine & Health / Neuroscience

created Dec 03, 2009 | popularity 5 / 5 (1) | comments 0

Our ability to learn new information and adapt to changes in our daily environment, as well as to retain lifelong memories, appears to lie in the minute junctions where nerve cells communicate, according to ...


Finding the Achilles' heel of cancer

Finding the Achilles' heel of cancer

Medicine & Health / Cancer

created Dec 10, 2009 | popularity 5 / 5 (3) | comments 0

A never-approved drug developed to prevent the death of nerve cells after a stroke can efficiently kill cancer cells while keeping normal cells healthy and intact, an international team led by a Tel Aviv University ...


Nervy research: Researchers take initial look at ion channels in a model system

Nervy research: Researchers take initial look at ion channels in a model system

Chemistry / Biochemistry

created Dec 02, 2009 | popularity 5 / 5 (1) | comments 0

Before one of your muscles can twitch, before the thought telling it to flex can race down your nerve, a tiny floodgate of sorts -- called an ion channel -- must open in the surface of each cell in these organs ...


New source discovered for the generation of nerve cells in the brain

Medicine & Health / Neuroscience

created Dec 01, 2009 | popularity 4.7 / 5 (6) | comments 0

The research group of Professor Magdalena Gotz of Helmholtz Zentrum Munchen and Ludwig-Maximilians-Universitat Munich (Germany) has made a significant advance in understanding regeneration processes in the brain. The researchers ...


Coaxing injured nerve fibers to regenerate by disabling 'brakes' in the system

Coaxing injured nerve fibers to regenerate by disabling 'brakes' in the system

Medicine & Health / Neuroscience

created Dec 09, 2009 | popularity 5 / 5 (1) | comments 0

Brain and spinal-cord injuries typically leave people with permanent impairment because the injured nerve fibers (axons) cannot regrow. A study from Children's Hospital Boston, published in the December 10 ...