Sentences with phrase «nerve fibers in»

The brain processes visual images 60,000 times faster than text (40 percent of all nerve fibers in the brain are connected to the retina).

When an injury is inflicted to the spinal cord or its vertebrae, the nerve fibers in the spinal cord are damaged, leaving the brain unable to send the right messages to other parts of the body.

The degeneration is two-fold: demyelination, i.e. the stripping away of the protective covering (myelin sheath) that surrounds nerve fibers in the spinal cord, and interference in the communication between the brain and the limbs.

According to Andys Veterinary Clinic, the disorder develops when the myelin sheaths that protect a dog's spinal neurons begin to fall apart, uncovering the underlying nerve fibers in a process known as myelathropy.

This is because 40 percent of the nerve fibers in the brain connect to the eye and roughly half of our neural tissue is related to vision.

No one knows what causes multiple sclerosis, in which the body's immune system attacks the protective myelin sheath surrounding nerve fibers in the brain and spine.

She's also started to lay down myelin, a white, fatty coating of insulation for nerve fibers in the brain.

The ends of the longest nerve fibers in the body are usually the first to suffer, according to the American Academy of Neurology.

MS is an inflammatory disease in which the protective myelin sheathing that coats nerve fibers in the brain and spinal cord is damaged and ultimately stripped away — a process known as demyelination.

Harrison's results demonstrated that the developing amphibian nervous system is remarkably flexible in adapting to such novel situations, even to the point of accelerating the growth of nerve fibers in a host species to keep pace with the faster - growing limb of a smaller donor species.

In mice expressing GFP under the control of the 5 - HT3A promoter, a subset of cells in the geniculate ganglion and nerve fibers in taste buds are GFP - positive.

Unlike people, fish can regrow damaged nerve fibers in their central nervous systems.

Researchers from the MIND Institute at University of California, Davis, USA, found sex differences in children with autism when looking at the organization of fibers in the corpus callosum, the largest bundle of nerve fibers in the brain.2

A study by researchers at Henry Ford Hospital found «substantial evidence» that a regenerative process involving damaged nerve fibers in the spinal cord could hold the key to better functional recovery by most stroke victims.

Myelin is the protective sheath that insulates nerve fibers in the brain, and it is the primary site of injury in MS.. What's more, the scientists were able to pinpoint a specific protein in the blood, the blood - clotting factor fibrinogen, as the trigger for the disease - causing process.

After other researchers reported that bone marrow stem cell therapy led to a modest but promising 5 percent improvement in the regeneration of sensory nerve fibers in rats with spinal cord injuries, he performed a critical reality check.

Much like that bare wire, the nerve fibers in the brain lose their protective coating, called myelin, and become extremely vulnerable.

100,000 Miles of myelin - covered nerve fibers in the brain of an average 20 - year - old.

A classic example is multiple sclerosis, where T lymphocytes, together with other inflammatory mediators, damage the protective myelin sheath that encases nerve fibers in the brain and spinal cord.

Glowing red, green and blue, the nerve fibers in this five - day - old zebrafish provide a map of early brain development.

All of us daily lose some of the 2 million nerve fibers in our optic nerve and we can lose 50 - 60 percent of them without it really affecting our vision, Liu says.

Oligodendrocytes, in red, create a protective sheath around nerve fibers in human brain tissue.

The team also observed that ILCs co-located with nerve fibers in the lung.

TBI commonly damages nerve fibers in the brain called axons.

«The cornea is the most densely innervated tissue in the body, so corneal nerve assessment is extremely sensitive for detecting small sensory nerve fiber damage as compared to other tests including measurement of intra-epidermal nerve fibers in the skin,» notes lead investigator Joseph L. Mankowski, DVM, PhD, who is Professor of Molecular and Comparative Pathobiology, Pathology, and Neurology at the Johns Hopkins University School of Medicine, Baltimore, MD..

Thermoreceptors are the nerve fibers in your skin that let you know if, say, a body part is on fire, or if that stovetop you're touching is still warm.

Water stimulates the touch and temperature nerve fibers in the skin.

When your uterus enlarges, the round ligaments that support it lengthen and thin out, hitting surrounding nerve fibers in the process.

Not exact matches

His research shows that in cases of hearing loss, the ear's nerve fibers become damaged before the hair cells do, and when those synaptic fibers reconnect to the hair cells, it's possible to regain hearing.

In experiments with rats, the researchers found that neural dust motes implanted in nerve and muscle fibers in the leg could record and transmit electrical datIn experiments with rats, the researchers found that neural dust motes implanted in nerve and muscle fibers in the leg could record and transmit electrical datin nerve and muscle fibers in the leg could record and transmit electrical datin the leg could record and transmit electrical data.

The center of the cord is gray matter — essentially an extension of the brain, like a tail — that is sheathed in fibrous white matter, with long, thin nerve fibers called axons shooting out at intervals to wire every part of the body.

There are no pain sensitive nerve fibers present in the umbilical cord; hence, no discomfort is felt by your baby while it is snipped off.

«Moving to non-invasive and repeatable methods of nerve fiber measurements such as in vivo corneal confocal microscopy would enhance study of peripheral neuropathy by enabling early detection of damage, progression of nerve fiber deterioration, and enable assessment of therapeutic strategies in the SIV / macaque model,» explains Dr. Mankowski.

Electrophysiological testing to measure peripheral nerve conduction properties is not a viable alternative because current methods lack the sensitivity required to detect damage to small, unmyelinated fibers, especially in early stages of disease.

Furthermore, dendritic cells were found to guide the regenerating corneal sensory nerve fibers after wounding; this association is disrupted in the diabetic corneas.

Yu and his research team discovered that in the diabetic mouse cornea, the density of sensory nerve fibers and their endings are drastically reduced, similar to patients with DPN.

Together, these findings demonstrate that emerging noninvasive techniques to measure corneal nerve fiber alterations such as in vivo corneal confocal microscopy may be useful clinical tools to screen for and monitor progression of peripheral neuropathy in HIV - infected patients.

Therefore, new sensitive, noninvasive methods of assessing small fiber nerve damage are urgently needed to detect and monitor peripheral neuropathy in HIV - infected individuals.

Currently, skin biopsy is the accepted standard for measuring the loss of small, unmyelinated C fibers in the epidermis, one of the earliest detectable signs of peripheral nerve damage.

Scores of laboratories at universities and in private industry are uncovering how to use these cells, which transform into neurons, astrocytes (the cells that regulate transmission of electrical impulses in the brain) and oligodendrocytes (which insulate nerve fibers with a fatty coating).

And like other retinal ganglion cells in the eye, the ipRGCs grow long fibers that snake out to join the optic nerve.

The remaining seven percent of patients underwent PSR — a percutaneous operation in which the nerve fibers causing pain are destroyed by a needle inserted from the cheek all the way into the skull.

In research that has implications for diabetes and other metabolic diseases, an international study based at UT Southwestern Medical Center found that the protein connexin 43 (Cx43) forms cell - to - cell communication channels on the surface of emerging beige fat cells that amplify the signals from those few nerve fibers.

Anatomical investigations have shown, however, that there are many more receptor cells in the retina than there are fibers in the optic nerve.

Fibers of intestinal tissue (in red) surround the nerve cells (in green) of the freshwater polyp Hydra.

This long trunk of nerve fibers links cortical regions involved in fatigue, pain, emotion and reward - processing with the right ventral attention network, associated with cognition.

His obsessive interest, artistic skill, and evolving understanding of the architecture of the nervous system found expression in beautiful portraits of brain cells and diagrams of nerve fibers.

If they are blocked, nerve fibers begin to sprout in the injured sections of the brain and spinal cord and relay nerve impulses again.

A fast - growing tumor (solid red) displaces nerve fibers (colored strands) in a false - color image of a 54 - year - old woman's brain, as seen from above.

Produced by a technique called fiber tractography, the image helped doctors at Sherbrooke University Hospital Center in Quebec avoid cutting vital circuitry during brain surgery: The reddest nerve fibers were those most likely to be severed by incisions to remove the tumor.