The Structure And Function Of The Nervous - www.informationsecuritysummit.org

The nervous system is a complex collection of nerves and specialized cells known as neurons that transmit signals between different parts of the body.

Diagnosing nervous system conditions

It is essentially the body's electrical wiring. Structurally, the nervous system has two components: the central nervous system and the peripheral nervous system. The peripheral nervous system consists of sensory neurons, ganglia clusters of neurons and nerves that connect to one another and to the central nervous system.

Functionally, the nervous system has two main subdivisions: the somatic, or voluntary, component; and the autonomic, or involuntary, component. The somatic system consists of nerves that connect the brain and spinal cord with muscles and sensory receptors in the skin.

The Central and Peripheral Nervous System

There are over trillion neural connections in the average human brain, though the number and location can vary. A synapse gives a command to the cell and the entire communication process typically takes only a fraction of a millisecond.

Motor neurons, located in the central nervous system or in peripheral ganglia, transmit signals to activate the muscles or glands. The brain's connections and thinking ability grew over thousands of years of evolution. This code packages up genetic information and sends it from nerve https://www.ilfiordicappero.com/custom/it-department-review-presentation/the-importance-of-tourism-in-india.php to other nearby nerve cells, a very important process in the brain.

There are a number of tests and procedures to diagnose conditions involving the nervous system.

Description of the nervous system

In addition to the traditional X-ray, a specialized X-ray called a fluoroscopy examines the body in motion, such as blood flowing through arteries, according to the NIH. Positron emission tomography PET is a procedure that measures cell or tissue metabolism and brain activity to uFnction tumors or diseased tissue or tumors, the NIH noted. A spinal more info places a needle into the spinal canal to drain a small amount of cerebral spinal fluid that is tested for infection or other abnormalities, according to the NIH. Mayo Clinic also noted that the nervous system can also be affected by vascular disorders such as:.

Infections such as meningitis, encephalitis, polio, and epidural abscess can also affect the nervous system, the NIH noted. Treatments vary from anti-inflammatory medications and pain medications such as opiates, to implanted nerve stimulators and wearable devices, Gozani said. The branch of medicine that studies and treats the nervous system is called neurology, and doctors who practice in this field of medicine are called neurologists.]