News tagged with neurons

Related topics: brain · nerve cells · brain cells · cells · stem cells

Neurons constantly rewrite their DNA

Johns Hopkins scientists have discovered that neurons are risk takers: They use minor "DNA surgeries" to toggle their activity levels all day, every day. Since these activity levels are important in learning, memory and brain ...

Apr 27, 2015
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Our elegant brain: Motor learning in the fast lane

It takes a surprisingly small cluster of brain cells deep within the cerebellum to learn how to serve a tennis ball, or line up a hockey shot. Researchers at McGill University led by Kathleen Cullen from the Department of ...

Aug 03, 2015
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Anxiety is not overcome in the brain's fear center

Scientists from the Center for Brain Research at MedUni Vienna are investigating how anxiety is processed and the flow of information in the brain in general: In a study, which has now been published in the leading magazine ...

May 01, 2015
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Neuron

A neuron (pronounced /ˈnjʊərɒn/ N(Y)OOR-on, also known as a neurone or nerve cell) is an excitable cell in the nervous system that processes and transmits information by electrochemical signalling. Neurons are the core components of the brain, the vertebrate spinal cord, the invertebrate ventral nerve cord, and the peripheral nerves. A number of specialized types of neurons exist: sensory neurons respond to touch, sound, light and numerous other stimuli affecting cells of the sensory organs that then send signals to the spinal cord and brain. Motor neurons receive signals from the brain and spinal cord and cause muscle contractions and affect glands. Interneurons connect neurons to other neurons within the same region of the brain or spinal cord. Neurons respond to stimuli, and communicate the presence of stimuli to the central nervous system, which processes that information and sends responses to other parts of the body for action. Neurons do not go through mitosis, and usually cannot be replaced after being destroyed, although astrocytes have been observed to turn into neurons as they are sometimes pluripotent.

This text uses material from Wikipedia, licensed under CC BY-SA

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