Sentences with phrase «nerve fibres»

"Nerve fibres" are thin, thread-like structures that carry messages or signals between the brain, spinal cord, and different parts of the body. They are like the wires that connect our body to our brain, helping us feel sensations, move our muscles, and control our actions. Full definition
In another study, lipoic acid was found to stimulate the regeneration of nerve fibres in diabetics, reducing the pain and numbness associated with neuropathy, as well as reducing AGE (glycosylated haemoglobin) damage in diabetic patients (25).
IT MAY seem corny to compare the slithering growth of nerve fibres in the developing human embryo to traffic moving along roads and freeways, but the analogy is apt.
Beneath the pores, which are most closely packed on the head, are «electroreceptors» containing cells which are sensitive to electric pulses and connected to the brain by nerve fibres.
People usually first notice the disease's symptoms in their twenties when immune cells begin to attack the protective sheath wrapped around nerve fibres in the brain and spinal cord.
Antihistamine - sensitive itches have been shown to activate nerve fibres called unmyelinated C - fibres.
These types of injuries can damage nerve fibres in the brain causing a traumatic brain injury.
His team aimed to stimulate a bundle of nerve fibres called the ventral capsule / ventral striatum, which goes from the front part of the brain that is involved in problem solving through to deeper regions.
Cochlear implants stimulate nerve fibres in the same way they would normally be activated by sound itself.
The idea of the implants is to create tiny conduits to guide formation of new nerve fibres, or axons, across this fluid - filled space.
Marder wanted to understand how the STG was regulated by external influences, such as hormones or substances released by CNS nerve fibres projecting onto the STG, or produced by STG neurons.
Christine Radtke is working to use spider silk to reconnect severed nerve fibres Radtke and her colleagues at the Medical University of Hannover, from whence the surgeon transferred to Vienna in October 2016, developed a new microsurgical technique that involves filling the veins with spider silk to form a longitudinal guide structure.
The rats saw a four-fold increase in nerve fibres throughout their brain and spine, with the new fibres bypassing the original injury and allowing signals from the brain to reach the spine.
It is not yet clear, however, whether the new, bypassing nerve fibres can completely restore motor function, he adds.
In theory, by precisely stimulating the relevant nerve fibres it could be possible to make a prosthetic limb feel exactly like a real one — restoring not only fine variations of touch, but also sensations of hot and cold, and even pain.
Electrodes are surgically implanted into or on top of target nerve fibres, ready to sense electrical signals from neural activity or to deliver electric current that mimics the language of the nervous system.
Wedeen used a related method called diffusion spectrum MRI, which also maps nerve fibres by tracking water but is good at highlighting where fibres cross.
This allows nerve fibres to grow in the right direction by following simple developmental rules controlled by biochemical signals — in a similar way to how the grid of New York City's streets makes it easy to give someone directions to a destination.
THE human brain has been described as «the most complex object in the known universe», comprising tens of billions of connecting nerve fibres seemingly tangled like a huge bowl of spaghetti.
Because slow conduction occurs in narrow fibres, Handwerker concludes that the itch nerve fibres must also be the thinnest so far found in humans.
The Schwann cells then rely more heavily on obtaining dietary lipids from blood vessels that pass through nerve fibres.
But electrical signals activate large, fast - twitch nerve fibres before small slow - twitch ones — the opposite of what happens naturally.
This in turn affects the production of fatty acids, components of the myelin sheath that surrounds nerve fibres.
First he transplanted leg muscle into their arms to boost the signal from the remaining nerve fibres.
Water tends to diffuse more quickly along nerve fibres than through other tissues, though researchers are not clear exactly what determines the speed of diffusion in different parts of the brain.
In this way it is possible to resolve individual photoreceptors, capillary blood vessels and individual nerve fibres in the same image.
Riding in on blood vessels and nerve fibres during your first months in the womb, these amorphous creatures colonised every part of your brain, where they transformed into a strange, tentacled form, before lying still, waiting like spiders at the centres of their webs.
Postsynaptic P2 × 3 - containing receptors in gustatory nerve fibres mediate responses to all taste qualities in mice
He found that many nerve fibres showed evidence of tearing, with some being completely torn, and also reported widespread brain degeneration.
The myelin sheath, which protects nerve fibres in the brain and spinal cord, is attacked and damaged by the immune system.
Dolapchieva, S. «Distribution of Concanavalin A and Wheat Germ Agglutinin Binding Sites in the Rat Peripheral Nerve Fibres Revealed by Lectin / glycoprotein - gold Histochemistry».
The thread and stitch map and measure, while at the same time expressing a visceral world joined with earthly textures and digital nerve fibres.
In MS, the body's own immune system attacks and damages myelin, the protective sheath around nerve fibres, causing disruption to messages sent around the brain and spinal cord.
Together, these can activate nerve fibres and cause pain long after the sun sets.
Six months later, Vescovi and Gelain found that new nerve fibres had grown all the way through many of the microscopic channels.
Between 100 and 250 nerve fibres project onto the STG from the brain and spinal cord, enabling central nervous system (CNS) regulation.
A follicle surrounds the root and this is intercepted by nerve fibres and capillaries that provide nourishment.
Failing so, this precaution would damage the nerve fibres to the heart, causing cardiac arrest, stagnating the blood in the blood vessels, thus further exacerbate the problem of microorganism invasion.
These marks occur when an area of skin has an insufficient supply of nerve fibres (which normally help to keep blood vessels narrow), so small blood vessels (or capillaries) will expand, allowing a greater amount of blood to flow in, thus causing a «stain» to form under the skin.
Apart from limited nerve grafts, doctors have only been able to use synthetic conduits (interposition graft), to reconnect severed nerves so that the nerve fibres can grow back together.
In an animal model, this technique successfully repaired nerve damage over distances of up to 6 cm: the nerve fibres grew back together in a functional way within 9 months.
«The nerve fibres use the silk fibres to grow along in order to reconnect with the other end of the nerve.
In comparison, rats given the same chemical and electrical treatment but trained on a treadmill were unable to move voluntarily as there was no regrowth of nerve fibres.
This will be more challenging, however, because the nerve fibres that carry these signals are very small, says Tyler.
Nerve fibres, too, have some serious navigating to do if a walking, talking, living child is ever to emerge from a fertilised egg.
For decades, neuroscientists have been trying to pinpoint the mysterious, microscopic signposts that they assumed must be guiding the tips of growing nerve fibres.
The nerves were removed and used in an experiment in which allowed the researchers to stimulate the nerve fibres with electrodes on both ends.
Sunburn is an inflammatory response to UV damage; CXCL5 and other molecules are recruited to the damaged area and activate nerve fibres, causing lasting pain.
Previous research has showed that musicians have increased white matter integrity in a specific part of the brain called the corpus callosum, a thick band of nerve fibres that connects the left and right halves of the brain, enabling communication between the hemispheres.
These nerve fibres are the smallest ever found in humans and carry the slowest signals.
a b c d e f g h i j k l m n o p q r s t u v w x y z