What is the nervous system?

The nervous system is a complex, sophisticated system that regulates and coordinates body activities. It is made up of two major divisions, including the following:

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• Central nervous system. This consists of the brain and spinal cord.

• Peripheral nervous system. This consists of all other neural elements, including the peripheral nerves and the autonomic nerves.

In addition to the brain and spinal cord, principal organs of the nervous system include the following:

• Eyes

• Ears

• Sensory organs of taste

• Sensory organs of smell

• Sensory receptors located in the skin, joints, muscles, and other parts of the body

What are some disorders of the nervous system?

The nervous system is vulnerable to various disorders. It can be damaged by the following:

• Trauma

• Infections

• Degeneration

• Structural defects

• Tumors

• Blood flow disruption

• Autoimmune disorders

Disorders of the nervous system

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Disorders of the nervous system may involve the following:

• Vascular disorders, such as stroke, transient ischemic attack (TIA), subarachnoid hemorrhage, subdural hemorrhage and hematoma, and extradural hemorrhage

• Infections, such as meningitis, encephalitis, polio, and epidural abscess

• Structural disorders, such as brain or spinal cord injury, Bell's palsy, cervical spondylosis, carpal tunnel syndrome, brain or spinal cord tumors, peripheral neuropathy, and Guillain-Barré syndrome

• Functional disorders, such as headache, epilepsy, dizziness, and neuralgia

• Degeneration, such as Parkinson disease, multiple sclerosis, amyotrophic lateral sclerosis (ALS), Huntington chorea, and Alzheimer disease

Signs and symptoms of nervous system disorders

The following are the most common general signs and symptoms of a nervous system disorder. However, each individual may experience symptoms differently. Symptoms may include:

• Persistent or sudden onset of a headache

• A headache that changes or is different

• Loss of feeling or tingling

• Weakness or loss of muscle strength

• Loss of sight or double vision

• Memory loss

• Impaired mental ability

• Lack of coordination

• Muscle rigidity

• Tremors and seizures

• Back pain which radiates to the feet, toes, or other parts of the body

• Muscle wasting and slurred speech

• New language impairment (expression or comprehension)

The symptoms of a nervous system disorder may look like other medical conditions or problems. Always see your healthcare provider for a diagnosis.

Healthcare providers who treat nervous system disorders

Healthcare providers who treat nervous system disorders may have to spend a lot of time working with the patient before making a probable diagnosis of the specific condition. Many times, this involves performing numerous tests to eliminate other conditions, so that the probable diagnosis can be made.

Neurology. The branch of medicine that manages nervous system disorders is called neurology. The medical healthcare providers who treat nervous system disorders are called neurologists. Some neurologists treat acute strokes and cerebral aneurysms using endovascular techniques.

Neurological surgery. The branch of medicine that provides surgical intervention for nervous system disorders is called neurosurgery, or neurological surgery. Surgeons who operate as a treatment team for nervous system disorders are called neurological surgeons or neurosurgeons.

Neuroradiologists and interventional radiologists. Radiologists that specialize in the diagnosis of neurological conditions using imaging and in the treatment of certain neurologic conditions such as cerebral aneurysms, acute strokes, and vertebral fractures, as well as biopsies of certain tumors.

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Rehabilitation for neurological disorders. The branch of medicine that provides rehabilitative care for patients with nervous system disorders is called physical medicine and rehabilitation. Healthcare providers who work with patients in the rehabilitation process are called physiatrists.

Amarillo (English pronunciation: /æmərɪlɵ/) is the 14th-largest city, by population, in the state of Texas, the largest in the Texas Panhandle, and the seat of Potter County. A portion of the city extends into Randall County. The population was 173,627 at the 2000 census. The Amarillo metropolitan area has an estimated population of 236,113 in four counties. In July 2009, the population was estimated at 189,389.
Amarillo, originally named Oneida, is situated in the Llano Estacado region. The availability of the railroad and freight service provided by the Fort Worth and Denver City Railroad contributed to the city's growth as a cattle marketing center in the late 19th century. Amarillo is the regional economic center for the Texas Panhandle, and is economically important to Eastern New Mexico and the Oklahoma Panhandle.
The city was once the self-proclaimed 'Helium Capital of the World' for having one of the country's most productive helium fields. The city is also known as 'The Yellow Rose of Texas' (as the city takes its name from the Spanish word for yellow), and most recently 'Rotor City, USA' for its V-22 Osprey hybrid aircraft assembly plant. Amarillo operates one of the largest meat packing areas in the United States. Pantex, the only nuclear weapons assembly and disassembly facility in the country, is also a major employer. The attractions Cadillac Ranch and Big Texan Steak Ranch were located adjacent to Interstate 40. U.S. Highway 66 also passed through the city.