U.S. National Library of Medicine - The World's Largest Medical Library

The nervous system consists of all neurons in your body. We communicate with the outside world through the nervous system and at the same time many mechanisms in our body are controlled. The nervous system receives information through our senses, processes that information, causing reactions such as moving muscles and causing pain. For example, when you touch the hotplate, you reflexively pull back your hand, and your nerve sends a pain signal to your brain at the same time. Metabolic processes are also controlled by the nervous system

The nervous system has billions of neurons, also called neurons. There are about 100 billion neurons in the brain alone. Each neuron has a cell body and various extensions. A short extension (called a dendrite) is like an antenna. They receive signals from other neurons and pass them to the cell body. Then pass the signal through a long extension (axon) which can be 1 meter long ... Learn more about the nervous system

It controls the nervous system part of internal organs such as heart and gland muscles. A part of the autonomic nervous system helps the body to rest, relax and digest the food, and another part helps people fight or fly in emergency

The cranial nerve appears directly from the brain and is a nerve to contrast with the spinal nerve (from various parts of the spinal cord). The cranial nerve exchanges information between the brain and body parts, mainly the head and neck parts.

A bundle of fibers that transmit and receive information between the body and the brain. This information is transmitted by chemical and electronic changes within the cells constituting the nerve.

Cells that transmit and receive information from the body and transmit it to the brain and transmit it to the body. The message is sent with a weak current. Nerve cell

Part of the nervous system, slowing of the heart, expansion of blood vessels, reduction of pupil size, increase of digestive juices, and relaxation of gastrointestinal muscle

It is a part of the peripheral nervous system that transfers signals from the central nervous system to skeletal muscles and transmits it from external stimuli, thereby adjusting vision, hearing and tactile sensation.

An array of nerve tissue extending rearward from the bottom of the skull. It is surrounded by three protective membranes and is wrapped in a vertebra (spine). The spinal cord and the brain form the central nervous system and transmit most of the information between the brain and other parts of the body.

The spinal nerve transmits signals between the spinal cord and the body. There are 31 pairs of spinal nerves, one pair on each side of the spine.

Increase in heart rate, blood pressure, respiratory rate and pupil size in the nervous system. It also narrows blood vessels and reduces digestive juices

According to the National Medical Library (NLM), the spleen is on the left side of the body just above the kidneys and is the largest lymphoid organ. "The spleen functions as a blood filter and controls the amount of erythrocytes and blood stored in the body and helps prevent infections," said Jordan Norton, senior nurse at the University of Florida Health Shadows. . When the hospital spleen detects potentially dangerous bacteria, viruses or other microbes in the blood, it produces white blood cells called lymphocytes together with the lymph nodes. This serves as a defense against intruders. Lymphocytes produce antibodies to kill foreign microbes and prevent the spread of infection. Those who have lost the spleen due to illness or injury are more likely to be infected, but humans can live without the spleen.

The classic work of medical history is one of collectors' most valuable books. Several well-known libraries are excellent, including Philadelphia Medical University, Welcome Trust (London), the world's largest medical library (Bethesda, Maryland). Reputation Obtain and protect such works. Each style has subtle differences in proprietary format that changes over time and since not all information is available for each reference entry or article, Encyclopedia.com warrants all references it generates You can not. Therefore, we recommend that you use Encyclopedia.com's reference as a starting point before checking the styles and up-to-date information provided on these websites, according to school and publication requirements.