Nerve. Medical search. FAQ

In addition, cranial efferents and ganglionic afferents are cholinergic nerves. (fas.org)
neuroanatomy ) The seventh (VII) of twelve paired cranial nerves . (wiktionary.org)
each of the second pair of cranial nerves , transmitting impulses to the brain from the retina at the back of the eye. (encyclopedia.com)
Glossopharyngeal nerve is ninth of twelve cranial nerves . (everything2.com)
Cranial nerves innervate parts of the head, and connect directly to the brain (especially to the brainstem). (wikipedia.org)
They are typically assigned Roman numerals from 1 to 12, although cranial nerve zero is sometimes included. (wikipedia.org)
In addition, cranial nerves have descriptive names. (wikipedia.org)
Information about problems associated with decreased function of the third cranial nerve. (dmoztools.net)

the optic nerve . (encyclopedia.com)
CT scan showed a tubular enlargement of the right optic nerve without calcification (Fig. 9.4). (springer.com)
the tumor was isointense on a T1-weighted image and hyperintense on T2-weighted images (Fig. 9.5).There was only weak enhancement over the optic nerve tumor. (springer.com)
These imaging findings were compatible with the diagnosis of optic nerve glioma. (springer.com)
Optic nerve glioma: an update. (springer.com)
Miller NR. Primary tumours of the optic nerve and its sheath. (springer.com)
Gliomas of the optic nerve: histological, immunohistochemical (MIB-1 and p53), and MRI analysis. (springer.com)
Wilhelm H. Primary optic nerve tumours. (springer.com)
Diagnosis and management of optic nerve glioma. (springer.com)
From the archives of the AFIP: pediatric orbit tumors and tumorlike lesions: neuroepithelial lesions of the ocular globe and optic nerve. (springer.com)
What we call light is a sensation produced upon our optic nerve by the vibrations of ether, comprising between 400 and 756 trillions per second, undulations that are themselves very obscure. (lulu.com)
Information related to optic nerve disorders. (dmoztools.net)

Bernese periacetabular osteotomy resulted in major nerve deficits in the sciatic or femoral nerves in 2.1% of 1760 patients, of whom approximately half experienced complete recovery within a mean of 5.5 months. (wikipedia.org)

Now it's become increasingly clear that, although tumours attempt to infiltrate the nerves to speed their spread, nerves stimulate cancer growth as well. (newscientist.com)
Nerve stimulation is the general term for pain control strategies that stimulate the nerves to feel other sensations - such as heat, cold, or vibration - which can "override" any feelings of pain. (breastcancer.org)
Nerves can be categorized into two groups based on where they connect to the central nervous system: Spinal nerves innervate (distribute to/stimulate) much of the body, and connect through the vertebral column to the spinal cord and thus to the central nervous system. (wikipedia.org)

The sciatic nerve (also called ischiadic nerve , ischiatic nerve ) is a large nerve in humans and other animals . (wikipedia.org)
The sciatic nerve provides the connection to the nervous system for nearly the whole of the skin of the leg , the muscles of the back of the thigh , and those of the leg and foot . (wikipedia.org)
The sciatic nerve is formed from the L4 to S3 segments of the sacral plexus , a collection of nerve fibres that emerge from the sacral part of the spinal cord . (wikipedia.org)
The sciatic nerve is the largest nerve in the human body. (wikipedia.org)
The sciatic nerve supplies sensation to the skin of the foot , as well as the entire lower leg (except for its inner side). (wikipedia.org)
The sciatic nerve also innervates muscles. (wikipedia.org)
Pain caused by a compression or irritation of the sciatic nerve by a problem in the lower back is called sciatica . (wikipedia.org)
Sciatic nerve injury occurs between 0.5% and 2.0% of the time during a hip replacement . (wikipedia.org)
Sciatic nerve palsy is a complication of total hip arthroplasty with an incidence of 0.2% to 2.8% of the time, or with an incidence of 1.7% to 7.6% following revision. (wikipedia.org)
this can cause sciatic nerve palsy which may resolve after the fragment is removed and the nerve freed. (wikipedia.org)
Sciatic nerve palsy can also result from severe spinal stenosis following the procedure, which can be addressed by spinal decompression surgery. (wikipedia.org)
Sciatic nerve injury may also occur from improperly performed injections into the buttock, and may result in sensory loss. (wikipedia.org)
Sciatic nerve exploration can be done by endoscopy in a minimally invasive procedure to assess lesions of the nerve. (wikipedia.org)
The sciatic nerve is a large nerve that originates from the distal spinal cord and extends along nearly the entire length of the hind limb. (unm.edu)
The sciatic nerve innervates most of the hind limb. (unm.edu)
As is the case with many of the large nerves of the vertebrate nervous system, the sciatic nerve is a mixed-function nerve, meaning it is made up of the axons of sensory and motor neurons. (unm.edu)
In addition, sensory receptors in the skin of the entire lower leg and the posteriolateral surface of the upper leg transmit information to the brain via sciatic nerve neurons. (unm.edu)
Damage to, or irritation of, the sciatic nerve at any point can result in a number of symptoms, some of them potentially serious. (unm.edu)
The malady we call sciatica is the result of inflammation of the sciatic nerve, usually caused by chronic irritation of one or more of the spinal nerves L4 S4. (unm.edu)
Whatever the cause, sciatica is characterized by pain along the course of the sciatic nerve through the hip and down the back of the leg (can you suggest why the pain is felt in these parts of the leg? (unm.edu)
As with other nerves in the vertebrate body, the sciatic nerve is comprised of the axons of hundreds of neurons. (unm.edu)
Because conduction velocity is proportional to axon diameter, the conduction velocity of the sciatic nerve neurons also varies widely, from 0.2 to 150 m sec -1 . (unm.edu)
The biggest nerve in the human body is the sciatic nerve, which is formed in the pelvis from multiple spinal nerves, after they have exited the spine. (spine.org)
Anatomically, the sciatic nerve travels down the leg, and can cause leg pain. (spine.org)
Before the advent of modern technology, when people had nerve related leg pain or buttock pain, it was presumed that this was caused by compression or damage occurring to the sciatic nerve. (spine.org)
Although the sciatic nerve can, in fact, cause leg pain, and get compressed or "pinched" by the piriformis muscle in a region called the "sciatic notch" (a condition called piriformis syndrome), this is very rare. (spine.org)

If all other methods of pain control do not provide relief, it is possible to have surgery to interrupt the nerve pathways that carry pain impulses to the brain. (breastcancer.org)

The individual nerve cells within sensory nerves are called sensory neurons . (daviddarling.info)
Bundles of fibres or axons, in the peripheral nervous system are called nerves, and bundles of afferent fibers are known as sensory nerves. (wikipedia.org)

The nerves of the peripheral nervous system are in pairs, with one usually leading to the left side and the other to the right side of the body. (encyclopedia.com)
A nerve is an enclosed, cable-like bundle of axons (nerve fibers, the long and slender projections of neurons) in the peripheral nervous system. (wikipedia.org)

Nerves form the network of connections that receive signals, known as sensory input, from the environment and within the body and transmit the body's responses, or instructions for action, to the muscles, organs, and glands. (encyclopedia.com)

The anterior interosseous branch is given off in the upper part of the forearm, courses with the anterior interosseous artery and innervates flexor pollicis longus and the lateral half of flexor digitorum profundus (the ulnar half is supplied by ulnar nerve, as is the flexor carpi ulnaris muscle). (wikipedia.org)

In most vertebrates, it's the major branch of the sacral plexus, a complex mass comprised of neurons that exit the spinal column via spinal nerves L4 through S4. (unm.edu)

A motor nerve, also called an efferent nerve , is a nerve that carries impulses outwards from the central nervous system to bring about activity in a muscle or a gland . (daviddarling.info)
Mixed nerves contain both afferent and efferent axons, and thus conduct both incoming sensory information and outgoing muscle commands in the same bundle. (wikipedia.org)
Bundles of these fibres are known as efferent nerves. (wikipedia.org)

Because the nerve transfer procedure involves cutting and reattaching nerve tissue, time is required to regenerate working connections between the nerves and muscle and to allow the brain to relearn how to use and strengthen that muscle. (wustl.edu)
As far as the nerve endings, someone on this forum mentioned that nerves regenerate at the rate of 1/2 inch per month, what exactly that leads to I don't know. (healingwell.com)

It now seems that targeting nerve cells might be an effective way to fight tumours - and even prevent them developing in the first place. (newscientist.com)

By injecting alcohol into the nerves surrounding pancreatic tumours pressing against the belly and spine he could destroy the fibres that carry pain signals to the brain. (newscientist.com)

The nerve transfer surgery necessarily creates a peripheral nerve injury to treat an irreparable central nervous system injury. (wustl.edu)
As their name suggests, nerve agents attack the nervous system of the human body. (princeton.edu)
A sensory nerve is a nerve that carries information inwards, from an outlying part of the body towards the central nervous system . (daviddarling.info)
This acts in a similar way to the cerebrospinal fluid in the central nervous system and constitutes a blood-nerve barrier similar to the blood-brain barrier. (wikipedia.org)
Nerves are categorized into three groups based on the direction that signals are conducted: Afferent nerves conduct signals from sensory neurons to the central nervous system, for example from the mechanoreceptors in skin. (wikipedia.org)
Nerves can be categorized into two groups based on function: An afferent nerve fiber conducts sensory information from a sensory neuron to the central nervous system, where the information is then processed. (wikipedia.org)

The median nerve enters the hand through the carpal tunnel, deep to the flexor retinaculum along with the tendons of flexor digitorum superficialis , flexor digitorum profundus , and flexor pollicis longus . (wikipedia.org)

Nerve agents are a class of phosphorus -containing organic chemicals ( organophosphates ) that disrupt the mechanism by which nerves transfer messages to organs. (princeton.edu)
A nerve provides a common pathway for the electrochemical nerve impulses that are transmitted along each of the axons to peripheral organs. (wikipedia.org)

The saphenous nerve, about the middle of the thigh, gives off a branch which joins the subsartorial plexus. (wikipedia.org)

Despite the severity of the immediate and long term threats to human health from exposure to the alleged nerve agent named in this attack "Novichok," the UK Government's initial response via the Chief Medical Office (CMO), Sally Davies - and on advice from Public Health England - was to play down any risks to the people in Salisbury. (counterpunch.org)

Compare with motor nerve . (daviddarling.info)

This is a key distinction between saphenous nerve neuropathy and lower back radiculopathy. (wikipedia.org)

This research investigates the novel application of a well-known technique-peripheral nerve transfer surgery-to restore hand function in people with cervical SCI. (wustl.edu)

These motor units are comprised of the lower motor neuron cell body (located within the spinal cord), its axonal projection (which travels to make up part of the associated peripheral nerve) and the muscle end organ. (wustl.edu)
The nerves also signal how your body is oriented to the environment. (google.com)
Some nerve agents are readily vaporized or aerosolized and the primary portal of entry into the body is the respiratory system. (princeton.edu)
Nerve agents can also be absorbed through the skin, requiring that those likely to be subjected to such agents wear a full body suit in addition to a respirator . (princeton.edu)
Thirty-one nerve pairs are connected directly to the spinal cord, branching out to the rest of the body. (encyclopedia.com)
The vibrations can interfere with, or drown out, the pain messages your nerves are sending from your body to your brain. (breastcancer.org)

Each nerve is a cordlike structure containing bundles of axons. (wikipedia.org)

Tumour cells can invade surrounding nerves and travel along the body's electrical superhighway, seeding themselves anew in distant sites. (newscientist.com)
books.google.com - A do-it-yourself manual for culturing nerve cells, complete with recipes and protocols. (google.com)
contains upward of 12 billion nerve cells, each of which may potentially be linked to countless others. (lulu.com)

Within a nerve, each axon is surrounded by a layer of connective tissue called the endoneurium. (wikipedia.org)

After acute exposure to a nerve agent, the erythrocyte enzyme activity most closely reflects the activity of the tissue enzyme, but during recovery the plasma enzyme activity more closely parallels tissue enzyme activity. (fas.org)
For most nerve agents the aging time is longer than the time within which acute casualties will be seen. (fas.org)

With severe compression and inflammation of the spinal nerves however, it is generally expected that symptoms will travel distally, down the arm or leg supplied by the respective nerve affected. (spine.org)

Nerve agents inhibit acetylcholinesterase in tissue, and their effects are caused by the resulting excess acetylcholine. (fas.org)
After a nerve agent inhibits the tissue enzyme, the enzyme cannot hydrolyze acetylcholine, the neurotransmitter at cholinergic receptor sites. (fas.org)
Finally, the entire nerve is wrapped in a layer of connective tissue called the epineurium. (wikipedia.org)
Each nerve is covered externally by a dense sheath of connective tissue, the epineurium. (wikipedia.org)

a paired sensory nerve that runs from each eye to the brain. (encyclopedia.com)

All of these are sensations that indicate the existence of nerve pain, or neuropathic pain. (google.com)
A neurosurgeon with special expertise in pain management can cut some of the nerves near the spinal cord, putting an end to any sensations of pain and pressure. (breastcancer.org)

Nerve pain can be the most severe pain you can imagine. (google.com)
Neuropathic or nerve pain is the most severe pain there is. (google.com)

An area called the sacral sulcus, is often painful when spinal nerves are compressed. (spine.org)

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