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Page "Chemical synapse" ¶ 2
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When and neurotransmitter
Neurons generate electrical signals that travel along their axon s. When a pulse of electricity reaches a junction called a synapse, it causes a neurotransmitter chemical to be released, which binds to receptors on other cells and thereby alters their electrical activity.
When an action potential, traveling along an axon, arrives at a synapse, it causes a chemical called a neurotransmitter to be released.
When a normally functioning motor nerve is stimulated it releases the neurotransmitter acetylcholine, which transmits the impulse to a muscle or organ.
When a signal comes down an axon, the synaptic vesicles fuse with the cell membrane releasing the neurotransmitter so that it can be detected by receptor molecules on the next nerve cell.
When the innervation to substance P nerve terminals is lost, post-synaptic cells compensate for the loss of adequate neurotransmitter by increasing the expression of post-synaptic receptors.
When a ligand ( the neurotransmitter ) binds to the receptor ( the transducer ) the latter activates a primary effector via the G-protein, which can go on to activate secondary messengers or have other effects.
When they are not being stimulated, such as in the dark, rod cells and cone cells depolarize and release a neurotransmitter spontaneously.
When stimulated, the taste bud triggers the release of neurotransmitter through exocytosis of synaptic vesicles from the presynaptic membrane.
When an excitatory neurotransmitter is released by the presynaptic neuron and binds to the postsynaptic dendritic spines, ligand-gated ion channels open, allowing sodium ions to enter the cell.
When the movement is towards the tallest stereocilia, the K + cation channels open allowing K + to flow into cell and the resulting depolarization causes the Ca2 + channels to open, thus releasing its neurotransmitter into the afferent auditory nerve.
When the wave reaches a synapse, it provokes release of a puff of neurotransmitter molecules, which bind to chemical receptor molecules located in the membrane of another neuron, on the opposite side of the synapse.
When calcium comes in, it binds, releases the vesicle, and opens up to release a neurotransmitter.

When and is
When Heidegger and Sartre speak of a contrast between being and existence, they may be right, I don't know, but their language is too philosophical for me.
When they express themselves it is incandescent hatred that shines forth, the rage of repudiation, the ecstasy of negation.
When I try to work out my reasons for feeling that this passage is of critical significance, I come up with the following ideas, which I shall express very briefly here and revert to in a later essay.
When the proprietor dies, the establishment should become a corporation until it is either acquired by another proprietor or the government decides to drop it.
When the reactionary response is thus bolstered by an intellectual defense, the characteristics of that defense are explicable only in terms of the basic attitudes of unanalyzed reaction.
When I take over Taliesin, the first thing I'll do is fire you ''.
When someone in the audience rose and asked how does it feel to be a celebrity, Carl said, `` A celebrity is a fellow who eats celery with celerity ''.
When decision makers act within this frame they determine whether a claim put forward in the name of religion is to be accepted by the larger community as appropriate to religion.
When we consider the disorganized state of the world community, and the legacy of predispositions adversely directed against all who are identified as Jews, it is obvious that the struggle for the minds and muscles of men needs to be prosecuted with increasing vigor and skill.
When we turn to Aristotle's ideas on the moral measure of literature, it is at once apparent that he is at times equally concerned about the influence of the art.
When their faith in civil liberties is tested against strong pressures of social expediency in specific issues, e.g., suppression of `` dangerous ideas '', many waver and give in.
There is, of course, nothing new about dystopias, for they belong to a literary tradition which, including also the closely related satiric utopias, stretches from at least as far back as the eighteenth century and Swift's Gulliver's Travels to the twentieth century and Zamiatin's We, Capek's War With The Newts, Huxley's Brave New World, E. M. Forster's `` The Machine Stops '', C. S. Lewis's That Hideous Strength, and Orwell's Nineteen Eighty-Four, and which in science fiction is represented before the present deluge as early as Wells's trilogy, The Time Machine, `` A Story Of The Days To Come '', and When The Sleeper Wakes, and as recently as Jack Williamson's `` With Folded Hands '' ( 1947 ), the classic story of men replaced by their own robots.
When I first came across Samuel Johnson's pronouncement, `` the remedy for the ills of life is palliative rather than radical '', it seemed to me to sum up the profoundest of political and social truths.
When all else fails, it is argued that open sessions slow down governmental operations.
When a person has thoughtlessly or deliberately caused us pain or hardship it is not always easy to say, `` Just forget it ''.
When a person meets God's requirements for the experience of forgiveness he is forgiven.
When I hold my son he stiffens his whole body in my arms until he is as straight and stiff as a board.
When different colors are used, she is just as likely to color trees purple, hair green, etc..
When we become firm enough to stand for those ideals which we know to be right, when we become hard enough to refuse to aid nations which do not permit self-determination, when we become strong enough to resist any more drifts towards socialism in our own Nation, when we recognize that our enemy is Communism not war, and when we realize that concessions to Communists do not insure peace or freedom, then, and only then will we no longer be `` soft ''.
When one powerful nation strives to emulate the success of another, it is only natural.
When a man is laid to rest, he is entitled to stay put.
When I talked to Ching about it, he said, Everyone can learn, if he is not a Reactionary or lazy.

When and released
In 2009, the American Anthropological Association's Commission on the Engagement of Anthropology with the US Security and Intelligence Communities released its final report concluding, in part, that, " When ethnographic investigation is determined by military missions, not subject to external review, where data collection occurs in the context of war, integrated into the goals of counterinsurgency, and in a potentially coercive environment – all characteristic factors of the HTS concept and its application – it can no longer be considered a legitimate professional exercise of anthropology.
When HeLA cells are infected with OROV, the cytochrome C is released from the membrane of the mitochondria, into the cytosol of the cells.
When Heart in Motion was released in 1991, many fans were surprised that the album was so clearly one of contemporary pop music.
When the series ended in the United Kingdom, a further seven volumes were issued exclusively in Australia, meaning that over 28 volumes, all 200 episodes were released on VHS.
When the Apple II, PET 2001 and TRS-80 were all released in 1977, all three had BASIC as their primary programming language and operating environment.
When he had returned to Paramount a few months later, " Matchbox Blues " had already become such a hit that Paramount re-recorded and released two new versions, under producer Arthur Laibly.
When Bathory's Under the Sign of the Black Mark was released, the album was considered a death metal record.
In 2012 he released a Byrds-tribute song, " When Roger Was Jim ".
When the Data Encryption Standard cipher was released in 1977, a key length of 56 bits was thought to be sufficient.
However, the story is not yet quite finished: " When the thousand years have expired, Satan will be released from his prison and will go out to deceive the nations which are in the four corners of the earth, Gog and Magog, to gather them together to battle, whose number is as the sand of the sea.
When the Atari VCS gaming system ( whose name was coined as a takeoff of the VES ) was released a year later, it had considerably better graphics and sound.
When the key is released, the tangent loses contact with the string and the vibration of the string is silenced by strips of damping cloth.
When Yellowstone Caldera last erupted some 650, 000 years ago, it released about 1, 000 km < sup > 3 </ sup > of material ( as measured in dense rock equivalent ( DRE )), covering a substantial part of North America in up to two metres of debris.
When, three years later, 3D Realms released Duke Nukem 3D, a tongue-in-cheek science fiction shooter based on Ken Silverman's technologically similar Build engine, id Software had nearly finished Quake, its next-generation game, which mirrored Dooms success for the remainder of the 1990s and significantly reduced interest in its predecessor.
When Kaye asked to be released from his radio contract in mid-1946, he agreed not to accept another regular radio show for one year and also to limit his guest appearances on the radio programs of others.
When David was finally released to the country, France had changed.
When the distribution company Elite Entertainment released the film on DVD in 1999, they retained the NC-17 version.
When the 1999 film The Blair Witch Project was released, the extensive marketing campaign claimed it to be a real documentary, compiled from footage discovered abandoned in a forest.
When they released the orbit of Sputnik to the media, the Russians were dumbfounded to learn how powerful American computers had become, as they would not have been able to calculate the orbit themselves.
When released in 1982, the Camira initially generated good sales, which later declined because buyers considered the 1. 6-litre engine underpowered, and the car's build and ride quality below-average.
When the key is released by the player, the far end returns to its rest position and the jack falls back.
* When the key is released, the jack falls back down under its own weight, and the plectrum passes back under the string.
When released, the top cymbal returns to its original position above the bottom cymbal ( open hi-hat ).

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