News tagged with nerve impulses
Light now in sight: Control of a 'blind' neuroreceptor with an optical switch
When nerve cells communicate with one another, specialized receptor molecules on their surfaces play a central role in relaying signals between them. A collaborative venture involving teams of chemists based at Ludwig-Maximilians-Universitat ...
Jan 10, 2012 |
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Researchers identify signals triggering dendrite growth
A study in worms that are less than a millimetre long has yielded clues that may be important for understanding how nerves grow.
Sep 20, 2011 |
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Neuro signals study gives new insight into brain disorders
Research into how the brain transmits messages to other parts of the body could improve understanding of disorders such as epilepsy, dementia, multiple sclerosis and stroke.
Medicine & Health / Neuroscience
Mar 14, 2011 |
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Membrane molecule keeps nerve impulses hopping
New research from the University of North Carolina at Chapel Hill School of Medicine describes a key molecular mechanism in nerve fibers that ensures the rapid conductance of nervous system impulses. The findings ...
Medicine & Health / Neuroscience
Jan 26, 2011 |
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The secrets behind stress-induced illness
(PhysOrg.com) -- Both humans and animals have different reactions to stress. Ongoing exposure to stress causes some individuals to show symptoms of disease, while others are resilient and do not become ill. ...
Medicine & Health / Neuroscience
Dec 22, 2010 |
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Plant-derived scavengers prowl the body for nerve toxins
The brain is forever chattering to itself, via electrical impulses sent along its hard-wired neuronal "Ethernet." These e-messages are translated into chemical transmissions, allowing communication across ...
Nov 23, 2010 |
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New powerful tool can visualize dynamic activity of electrical signals in neuronal populations
Information processing in the brain relies on the coordinated activity between populations of different types of neurons, each with distinct electrical properties and connections. Understanding how complex ...
Medicine & Health / Neuroscience
Sep 27, 2010 |
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Opening the gate to the cell's recycling center
(PhysOrg.com) -- In cells, as in cities, disposing of garbage and recycling anything that can be reused is an essential service. In both city and cell, health problems can arise when the process breaks down.
Jul 14, 2010 |
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Understanding Balance in the Nervous System
(PhysOrg.com) -- A UConn neuroscientist is studying a signaling pathway in the brain that is the target of many anxiolytic medications.
Medicine & Health / Medical research
Jul 13, 2010 |
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Parkinson's Patients More Likely to Stick With Certain 'Add-on' Drugs
Of the three main types of oral drugs commonly added to levodopa therapy for patients with advanced Parkinson’s disease, one might be the most effective, according to a new review.
Medicine & Health / Medical research
Jul 09, 2010 |
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A butterfly effect in the brain
Next time your brain plays tricks on you, you have an excuse: according to new research by UCL scientists published today in the journal Nature, the brain is intrinsically unreliable.
Medicine & Health / Neuroscience
Jun 30, 2010 |
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Link between iron overload and macular degeneration under study
The most common - and under-diagnosed - genetic disease in humans just may be a cause of the worst form of macular degeneration, Medical College of Georgia researchers report.
Medicine & Health / Medical research
Jun 24, 2010 |
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Botox eases nerve pain in certain patients
Made popular for its ability to smooth wrinkles when injected into the face, Botox — a toxin known to weaken or paralyze certain nerves and muscles — may have another use that goes beyond the cosmetic.
Medicine & Health / Diseases, Conditions, Syndromes
Jun 10, 2010 |
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Newly discovered gene variants lead to autism and mental retardation
Researchers working with Professor Gudrun Rappold, Director of the Department of Molecular Human Genetics at Heidelberg University Hospital, have discovered previously unknown mutations in autistic and mentally impaired patients ...
May 25, 2010 |
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Demonstrated in vivo the transfer of maternal thyroid hormones to the fetus
Until now there were only indirect evidence of the transfer of thyroid hormones from mother to fetus through the placenta during pregnancy. That event is very important because the maternal thyroid hormones appear to play ...
Medicine & Health / Medical research
Apr 12, 2010 |
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Action potential
An action potential (or nerve impulse) is a transient alteration of the transmembrane voltage (or membrane potential) across an excitable membrane generated by the activity of voltage-gated ion channels embedded in the membrane. Action potentials play multiple roles in several types of excitable cells such as neurons, myocytes, and electrocytes. The best known action potentials are pulse-like waves of voltage that travel along axons of neurons.
For more information about Action potential, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
