- published: 29 Jan 2011
- views: 34600
Dendrites (from Greek δένδρον déndron, "tree") (also dendron) are the branched projections of a neuron that act to propagate the electrochemical stimulation received from other neural cells to the cell body, or soma, of the neuron from which the dendrites project. Electrical stimulation is transmitted onto dendrites by upstream neurons (usually their axons) via synapses which are located at various points throughout the dendritic tree. Dendrites play a critical role in integrating these synaptic inputs and in determining the extent to which action potentials are produced by the neuron.
Dendrites are one of two types of protoplasmic protrusions that extrude from the cell body of a neuron, the other type being an axon. Axons can be distinguished from dendrites by several features including shape, length, and function. Dendrites often taper off in shape and are shorter, while axons tend to maintain a constant radius and be relatively long. Typically, axons transmit electrochemical signals and dendrites receive the electrochemical signals. Although, some types of neurons in certain species lack axons and simply transmit signals via their dendrites. Dendrites provide an enlarged surface area to receive signals from the terminal buttons of other axons allowing for a chemical signal to pass simultaneously to many target cells. Synapses involving dendrites can be axodendritic, involving an axon signaling to a dendrite, or dendrodendritic, involving signaling between dendrites. Dendritic branching is also called "dendritic arborization" and "dendritic ramification."
In this film a boy is smelling the dendrite and enjoying himself life.
Dedrite
Sniffing dendrite
In my 2-Minute Neuroscience videos I simplistically explain neuroscience topics in 2 minutes or less. In this video, I discuss the neuron, briefly touching on all of the parts of a neuron including the dendrites, soma, axon hillock, axon, and axon terminals or synaptic boutons. I describe how a signal travels from the dendrites of a neuron, down the axon, and to the axon terminals to communicate with another neuron through the release of neurotransmitter. For more neuroscience articles, videos, and a complete neuroscience glossary, check out my website at www.neuroscientificallychallenged.com ! The image of a brain used in this video is a CC image courtesy of _DJ_ on Flickr. The work can be seen here: https://flic.kr/p/dLbzPm and the CC license can be seen here: https://creativecommons.o...
http://www.neurohabits.com/what-is-a-dendrite/ for full article. Learn about what is a dendrite, the dendritic tree, the dendritic bifurcations and the dendritic spines. This video was originally hosted at http://youtu.be/3wINvIF1Myg
You can do this experiment at home with MEL Chemistry: https://melscience.com/en/experiments/tin-dendrite/ Reaction: 2Sn2++2H2O→↯Sn4++Sn+O2+4H+ Step-by-step instruction 1. Attach two crocodile clips on the opposite sides of a Petri dish. 2. Pour out tin (II) chloride (SnCl2) solution into the Petri dish. Tilt the dish to distribute liquid evenly. Make sure the clips are immersed in the solution. 3. Insert four AAA batteries into the battery holder. Connect the dangling clip wires ends to the battery holder as shown. Wait for 2 minutes. 4. Witness a tin dendrite growth. Amazing chemistry experiments to do with your family: https://melscience.com/en/ How it works 1. Simply enter your address and payment information and you are in. You can cancel your subscription at any moment. 2. Afte...
Scientists at the Department of Energy’s Oak Ridge National Laboratory have captured the first real-time nanoscale images of lithium dendrite structures known to degrade lithium-ion batteries. The ORNL team’s electron microscopy could help researchers address long-standing issues related to battery performance and safety. Video shows annular dark-field scanning transmission electron microscopy imaging (ADF STEM) of lithium dendrite nucleation and growth from a glassy carbon working electrode and within a 1.2M LiPF6 EC:DM battery electrolyte.
In a society where power and wealth are inaccessable to most of it's citizens it becomes infinitely easier to seek these things on the wrong side of the law
[All:]
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[Isaac Mutant:]
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[All:]
Wie maak die jol vol?
Knoffel maak die jol vol
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[Knoffel:]
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[All:]
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Jaakie maak die jol vol
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[Jaak Paarl:]
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Jaakie, Knoffel, Scally, Isaac, Ninja
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[All:]
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[All:]
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Scally maak die jol vol
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[Scallywag:]
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[Jaak:] Rosyntjies, piesangs is my resep
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[Knoffel:] Wil jy 'n MC is en daai fok los die kak gedagte