Interesting Facts about Neurons
Do you know the total number of neurons in the human #brain is nearly equal to the total number of stars in the Milky Way? And, the average number of neurons in the human brain is around 100 Billion!!!
Another interesting fact is that the longest neuron in the body extends from the base of our spine to the big toe; it is over a meter long (around 3 feet)!
So, have you ever imagined or thought how this amazing component of our nervous system function. Read on to unlock the mysterious functions of neurons.
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Acoustic neuroma, an unusual cause of hearing loss, usually a noncancerous (benign) but gradual growth of tumor that develops on the main nerve landing ….
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Neuroscientists at Howard Hughes Medical Institute have mapped the activity of nearly all the neurons in a vertebrate brain at cellular resolution, with signficant implications for neuroscience research and projects like the proposed Brain Activity Map (BAM).
Fast volumetric imaging of the larval zebrafish brain with light-sheet microscopy (credit: Misha B Ahrens, Philipp J Keller/Nature Methods)
The researchers used high-speed light sheet microscopy to image the activity of 80% of the neurons in the brain (which is composed of ~100,000 neurons) of a fish larva at 0.8 Hz (an image every 1.3 seconds), with single-cell resolution.
This represents the first technology that achieves whole brain imaging of a vertebrate brain at cellular resolution with speeds that approximate neural activity patterns and behavior, as Nature Methodsmethagora blog noted.
The authors saw correlated activity patterns at the cellular level that spanned large areas of the brain — pointing to the existence of broadly distributed functional circuits.
The next steps will be to determine the causal role that these circuits play in behavior — something that will require improvements in the methods for 3D optogenetics, the blog said. Obtaining the detailed anatomical map of these circuits will also be key to understand the brain’s organization at its deepest level.
See on www.kurzweilai.net
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What is Neuron?
Neuron is the structural and functional unit of our nervous system. More frankly, neurons are the cells by which the whole human body communicate with the brain and outside world. As like radio transmission, neurons send and receive signals from and to the brain. Within fraction of seconds they can receive, process and transmit an information.
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