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Home > Category Index for Science Quotations > Category Index A > Category: Alimentary Canal

Alimentary Canal Quotes (2 quotes)

I arrived at the conclusion in the latter part of 1848, that cholera is communicated by the evacuations from the alimentary canal.
John Snow
In 'On the Mode of Communication of Cholera', The Edinburgh Medical Journal (Jan 1856), Vol. 1, No. 7, 668-669.
Science quotes on:  |  Cholera (7)  |  Communicate (39)  |  Conclusion (266)  |  Disease (340)  |  Epidemiology (3)  |  Evacuation (3)

The central nerve chain of an invertebrate such as the lobster runs beneath its alimentary canal, whereas the main portion of its rudimentary brain is placed above it, in its forehead. In other words, the lobster’s gullet, from mouth to stomach, has to pass through the midst of its brain ganglia. If its brain were to expand—and expand it must if the lobster is to grow in wisdom—its gullet would be squeezed and it would starve.
In Epilogue, The Sleepwalkers: A History of Man’s Changing Vision of the Universe (1959), 516.
Science quotes on:  |  Beneath (68)  |  Brain (281)  |  Canal (18)  |  Central (81)  |  Expand (56)  |  Grow (247)  |  Invertebrate (6)  |  Lobster (5)  |  Mouth (54)  |  Must (1525)  |  Nerve (82)  |  Nervous System (35)  |  Other (2233)  |  Pass (241)  |  Portion (86)  |  Rudimentary (4)  |  Run (158)  |  Squeeze (7)  |  Starvation (13)  |  Stomach (40)  |  Through (846)  |  Wisdom (235)  |  Word (650)


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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- 90 -
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- 80 -
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- 70 -
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