The soma, or perikaryon, is the bulbous end of a neuron, containing the cell nucleus. The word "soma" is from a Greek word meaning "body" and the soma of a neuron is often called the "cell body". There are many different specialized types of neurons and the size of the soma can range from about 5 micrometres (5 millionths of a metre) to over 1 millimetre for some of the largest neurons of invertebrates.
The cell nucleus is a key feature of the soma. The nucleus is the source of most of the RNA that is produced in neurons and most proteins are produced from mRNAs that do not travel far from the nucleus. This creates a challenge for supplying new proteins to axon endings that can be several feet away from the soma. Axons contain microtubule-associated motor proteins that allow for the transport of protein-containing vesicles from the soma to the distant ends of axons. Such transport of molecules away from the soma allows the nucleus to help maintain critical cell functions in all parts of the neuron.
The survival of some sensory neurons depends on axon endings making contact with sources of survival factors that prevent apoptosis. The survival factors are molecules such as nerve growth factor (NGF). NGF interacts with receptors on axon endings, and this produces a signal that must be transported up the length of the axon to the nucleus. A current theory of how such survival signals are sent from axon endings to the soma includes the idea that NGF receptors are endocytosed from the surface of axon tips and that such endocytotic vesicles are transported up the axon.
Andrew Lawson, Lucy Griggs, Nicki Wynnychuk, Ken Shimizu, Hamish Carr, Mila Faranov, Nicole Belle, Mim Truffilo, Robyn Base and Ben Millar. An investigation into the art movement Arte Povera with an emphasis on the concept of the Post Heroic.
Opening night: Wednesday 5 September 5-7pm George Paton Gallery. The gallery is situated on the second floor, Union House, The University of Melbourne, VIC 3010, Australia
I'm just dropping by your page to promote my EP 'Aquaboogie'
Here are the links ...
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Support for 'Aquaboogie' EP has so far come from Annie Nightingale (radio 1), Lisa Lashes, Nerm (BBC Asian ELECTRO east), Junkie XL, Laurent Garnier, The Drummatic Twins, Pete Jordan, Mike McKenna, Erka, Jamie Gittins, Kelvin Briscall, Def Inc., Transformer Man, Danny Dove, Simply Jeff, Ollspin, Anna Kiss, Mark Emerson, DJ Filip, DJ Freeman, DJ Rombout, B-Line and many more
Also check out my new VIDEO for 'HDHU' on my page if you get time
>> Album dropping this summer! <<
If you dont want me to promote on your page please DELETE me from your list
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All the best & thanks for the support, jed :)
Hello, Mankind, Citizen of the Earth
Our planet is covered with oceans of chocolate, vanilla cream and orange marmelade.
Call the taxi spaceship for the paradise of sugar d[-_°]b
we will sail together the creamy seas.
New video on audio-mastick's myspace profile----->live @ diversions
New track on audio-mastick's myspace profile -----> New Trance Felecom
cheers
$µrfTerez@ fr°m @µdi°-m@$tick
olá sérgio. tudo bom por aí?
envio-te um still de um dos meus vídeos em quartz..
há coisa de 1 mês dei o teu myspace url a uma produtora..espero que n te importes.
Beijinhos
We invite you to check out some of the newest Roundhouse sounds. Dirty electro, deep funky house, warped techno, nu-skool breaks, and smokey down-tempo grooves. 3 of the tracks are in the Roundhouse player & a mini-mix of 'the swamp' EP. Much love!! Roundhouse
