News tagged with synapses
(Medical Xpress)—When brain cells are overwhelmed by an influx of too many calcium molecules, they shut down the channels through which these molecules enter the cells. Until now, the "stop" signal mechanism that cells ...
Neuroscience May 09, 2013 | 5 / 5 (4) | 0 |
Alzheimer's disease is characterized by the accumulation of neurotoxic β-amyloid peptide (A-beta). ADAM10, a protein that resides in the neural synapses, has previously been shown to prevent the formation of A-beta.
Alzheimer's disease & dementia May 08, 2013 | not rated yet | 0
A study in The Journal of General Physiology presents new methods to evaluate how astrocytes contribute to brain function, paving the way for future exploration of these important brain cells at unprecede ...
Medical research Apr 29, 2013 | not rated yet | 0
(Medical Xpress)—Using the fruit fly as a model organism, neurobiologists from the Friedrich Miescher Institute for Biomedical Research have identified the L1-type CAM neuroglian as an important regulator ...
Neuroscience Apr 25, 2013 | 5 / 5 (1) | 0 |
Using spinning disk microscopy on barely day-old zebra fish embryos, University of Oregon scientists have gained a new window on how synapse-building components move to worksites in the central nervous system.
Neuroscience Apr 18, 2013 | 4 / 5 (1) | 0 |
(Medical Xpress)—When the brains of those who have succumbed to age-related neurodegeneration are analyzed post-mortem, they typically show significant atrophy on all scales. Not only is the cortex thinner ...
Neuroscience Apr 17, 2013 | 5 / 5 (2) | 0 |
Researchers at the University Department of Neurology at the MedUni Vienna have identified a gene behind an epilepsy syndrome, which could also play an important role in other idiopathic (genetically caused) ...
Neuroscience Apr 17, 2013 | 4 / 5 (1) | 1
The transistors and wires that power our electronic devices need to be mounted on a base material known as a "motherboard." Our human brain is not so different—neurons, the cells that transmit electrical ...
Neuroscience Mar 07, 2013 | not rated yet | 0 |
Scientists have watched a mild traumatic brain injury play out in the living brain, prompting swelling that reduces blood flow and connections between neurons to die.
Neuroscience Mar 07, 2013 | 2 / 5 (1) | 0 |
How do neurons store information about past events? In the Nencki Institute of Experimental Biology of the Polish Academy of Sciences in Warsaw, a mechanism unknown previously of memory traces formation has ...
Neuroscience Mar 07, 2013 | not rated yet | 0
The flip of a single molecular switch helps create the mature neuronal connections that allow the brain to bridge the gap between adolescent impressionability and adult stability. Now Yale School of Medicine ...
Neuroscience Mar 06, 2013 | 5 / 5 (5) | 0 |
Though it's most often associated with disorders like diabetes, Harvard researchers have shown how the signaling pathway of insulin and insulin-like peptides plays another critical role in the body – helping ...
Neuroscience Feb 26, 2013 | 5 / 5 (4) | 0 |
(Medical Xpress)—In a pair of new papers, researchers at the University of California, San Diego School of Medicine and the Royal Netherlands Academy of Arts and Sciences upend a long-held view about the basic functioning ...
Alzheimer's disease & dementia Feb 19, 2013 | 4.5 / 5 (2) | 0 |
Learning, memory and habits are encoded in the strength of connections between neurons in the brain, the synapses. These connections aren't meant to be fixed, they're changeable, or plastic.
Autism spectrum disorders Feb 16, 2013 | 4.5 / 5 (2) | 0
In a new study in mice, a scientific collaboration centered at Brown University lays out in unprecedented detail a neurological signaling breakdown in Angelman syndrome, a disorder that affects thousands ...
Medical research Feb 13, 2013 | 5 / 5 (2) | 0 |
Chemical synapses are specialized junctions through which neurons signal to each other and to non-neuronal cells such as those in muscles or glands. Chemical synapses allow neurons to form circuits within the central nervous system. They are crucial to the biological computations that underlie perception and thought. They allow the nervous system to connect to and control other systems of the body.
The adult human brain is estimated to contain from 1014 to 5 × 1014 (100-500 trillion) synapses. Each mm3 of cerebral cortex contains roughly a billion of them.
The word "synapse" comes from "synaptein", which Sir Charles Scott Sherrington and colleagues coined from the Greek "syn-" ("together") and "haptein" ("to clasp"). Chemical synapses are not the only type of biological synapse: electrical and immunological synapses also exist. Without a qualifier, however, "synapse" commonly means chemical synapse.
For more information about Chemical synapse, read the full article at
This text uses material from Wikipedia and is available under the GNU Free Documentation License.