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

Study identifies gene targets to combat cognitive decline

Researchers have identified the possible mechanisms by which long-lived mutants of the model system Caenorhabditis elegans are able to maintain learning and memory later in life while some experience cognitive decline.

Walking on the move: New insights into the neurology of locomotion

In a new study, scientists from the University of Cologne gained new insights into the mechanism of the rhythmic activation of nerve cells (neurons) in stick insects that control the leg muscles during walking. The researchers ...

How fruit flies control the brain's 'steering wheel'

When we walk down the street, we have an internal sense of which way we are heading from looking at street signals and physical landmarks and also a sense of where we'd like to go. But how does the brain coordinate between ...

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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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