News tagged with nerve cells

Related topics: brain , neurons , brain cells , protein , neurodegenerative diseases

Proteases help nerve cells to navigate

Our ability to move relies on the correct formation of connections between different nerve cells and between nerve and muscle cells. Growing axons of nerve cells are guided to their targets by signposts expressed ...

17 hours ago
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Manipulating memory with light

Just look into the light: not quite, but researchers at the UC Davis Center for Neuroscience and Department of Psychology have used light to erase specific memories in mice, and proved a basic theory of how ...

Oct 09, 2014
popularity 4.8 / 5 (6) | comments 1

Scientists discover pain receptor on T-cells

Researchers at University of California, San Diego School of Medicine have discovered that T-cells – a type of white blood cell that learns to recognize and attack microbial pathogens – are activated by a pain receptor.

Oct 05, 2014
popularity 5 / 5 (11) | comments 1

How rabies "hijacks" neurons to attack the brain

Rabies causes acute inflammation of the brain, producing psychosis and violent aggression. The virus, which paralyzes the body's internal organs, is always deadly for those unable to obtain vaccines in time. ...

Oct 06, 2014
popularity 4.5 / 5 (2) | comments 0

Do gut bacteria rule our minds?

It sounds like science fiction, but it seems that bacteria within us—which outnumber our own cells about 100-fold—may very well be affecting both our cravings and moods to get us to eat what they want, ...

Aug 15, 2014
popularity 4.8 / 5 (61) | comments 18

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.

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