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Home > Dictionary of Science Quotations > Scientist Names Index E > Thomas Renton Elliot Quotes

Thomas Renton Elliot
(1877 - 1961)

British physician and physiologist who elaborated of the concept of chemical neurotransmission.

Science Quotes by Thomas Renton Elliot (1 quote)

Adrenalin does not excite sympathetic ganglia when applied to them directly, as does nicotine. Its effective action is localised at the periphery. The existence upon plain muscle of a peripheral nervous network, that degenerates only after section of both the constrictor and inhibitory nerves entering it, and not after section of either alone, has been described. I find that even after such complete denervation, whether of three days' or ten months' duration, the plain muscle of the dilatator pupillae will respond to adrenalin, and that with greater rapidity and longer persistence than does the iris whose nervous relations are uninjured. Therefore it cannot be that adrenalin excites any structure derived from, and dependent for its persistence on, the peripheral neurone. But since adrenalin does not evoke any reaction from muscle that has at no time of its life been innervated by the sympathetic, the point at which the stimulus of the chemical excitant is received, and transformed into what may cause the change of tension of the muscle fibre, is perhaps a mechanism developed out of the muscle cell in response to its union with the synapsing sympathetic fibre, the function of which is to receive and transform the nervous impulse. Adrenalin might then be the chemical stimulant liberated on each occasion when the impulse arrives at the periphery.
— Thomas Renton Elliot
'On the Action of Adrenalin', Proceedings of the Physiological Society, 21 May 1904, in The Journal of Physiology 1904, 31, xxi.
Science quotes on:  |  Action (342)  |  Adrenaline (5)  |  Alone (324)  |  Applied (176)  |  Both (496)  |  Cause (561)  |  Change (639)  |  Chemical (303)  |  Complete (209)  |  Develop (278)  |  Effective (68)  |  Evoke (13)  |  Existence (481)  |  Find (1014)  |  Function (235)  |  Greater (288)  |  Impulse (52)  |  Life (1870)  |  Mechanism (102)  |  Month (91)  |  Muscle (47)  |  Nerve (82)  |  Network (21)  |  Occasion (87)  |  Persistence (25)  |  Point (584)  |  Rapidity (29)  |  Reaction (106)  |  Receive (117)  |  Response (56)  |  Stimulus (30)  |  Structure (365)  |  Sympathetic (10)  |  Tension (24)  |  Time (1911)  |  Transform (74)  |  Union (52)  |  Will (2350)

Carl Sagan Thumbnail In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion. (1987) -- Carl Sagan
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