Sentences with phrase «many nerve fibres»

A fatty outer coating for our trillions of nerve fibres, myelin is thought by some to be the key to our ability to develop complex skills like language.

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.

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 nerve fibres use the silk fibres to grow along in order to reconnect with the other end of the nerve.

Antihistamine - sensitive itches have been shown to activate nerve fibres called unmyelinated C - fibres.

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.

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.

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.

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.

For decades, neuroscientists have been trying to pinpoint the mysterious, microscopic signposts that they assumed must be guiding the tips of growing nerve fibres.

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.

The nerves were removed and used in an experiment in which allowed the researchers to stimulate the nerve fibres with electrodes on both ends.

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.

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.

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.

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.

The pair have already successfully begun to use DTI to map brain structure at the level of nerve fibres, and it could be fruitful to follow connections out from a point activated by TMS, says Johansen - Berg.

«But still there are some nerve fibres present,» says Aszmann.

First he transplanted leg muscle into their arms to boost the signal from the remaining nerve fibres.

«There are about 70,000 nerve fibres to a normal hand, and the majority of these are sensory fibres carrying hand - to - brain information,» he says.

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.

Six months later, Vescovi and Gelain found that new nerve fibres had grown all the way through many of the microscopic channels.

The idea of the implants is to create tiny conduits to guide formation of new nerve fibres, or axons, across this fluid - filled space.

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.

During the 1980s, Marder led studies using antibodies and the technique of immunocytochemistry to reveal the presence of many different neuromodulators in nerve fibres around the STG of crabs, including serotonin, proctolin and GABA.

Between 100 and 250 nerve fibres project onto the STG from the brain and spinal cord, enabling central nervous system (CNS) regulation.

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».

A follicle surrounds the root and this is intercepted by nerve fibres and capillaries that provide nourishment.

Omega - 3 fatty acids, which directly feed the brain's nerve fibres, can be extracted from both plants and marine life — of which the latter is better absorbed by the brain.

The thread and stitch map and measure, while at the same time expressing a visceral world joined with earthly textures and digital nerve fibres.

The brachial plexus is a group of nerve fibres that run from the spine at the neck, down into the arm.

These types of injuries can damage nerve fibres in the brain causing a traumatic brain injury.

This occurs due to a moment of impact (often due to a sports injury or car accident) Â during which the brain is literally bounced around in the head and can endure tearing, bleeding, or bruising of nerve fibres.

Not exact matches

How comes it that, with different nerve - fibres of touch and sight, we distinguish different space - points, but with one fibre distinguish nothing, although the different fibres are connected in the brain just as much as the parts are in the single fibre?

«These delicate fibres displayed a highly regular distribution pattern, and so we wanted to figure out if they were made of the same material as the ganglia that form the nerve cord,» said Ortega - Hernández.

Tyler agrees that stimulating individual fibres in the nerve bundles leads to finer degrees of sensation.

Magnetogenetics is a new spin on optogenetics, using magnets instead of fibre optics to turn nerve cells on and off

«We found that these include multiple locations for nerve cells in the brainstem that innervate the heart with insulated fibres that conduct rapid impulses, causing an instantaneous cardiac response to each air - breath.»

A quick intro to motor units, a motor unit is the complex of the nerve and the muscle fibres this nerve activates.