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Dr. Michael D. Gershon is the author of The Second Brain and the chairman of the department of anatomy and cell biology at Columbia University. See also ...
Layers of the Alimentary Canal.The wall of the alimentary canal has four basic tissue layers: the mucosa, submucosa, muscularis, and serosa. The enteric nervous system in humans consists of some 500 million neurons [11] (including the various types of Dogiel cells), [1] [12] 0.5% of the number of neurons in the brain, five times as many as the one hundred million neurons in the human spinal ...
Second brain" can refer to: The enteric nervous system. A now-disproven theory that some large dinosaurs may have had two brains This page was last edited on 23 May ...
Researchers have found that tiny healthy microbes in your gut actually transmit brain signals throughout your nervous system. That system can rally your body to assume the classic fight-or-flight ...
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Schaeffer, who called "Death's Hand in Mine" a "nearly impossible episode to put together," [10] later noted that associate producer Ishi Metkar served as her "second brain" on set. [10] Metkar was responsible for documenting where all the transitions would occur and became instrumental in filming the flashback scenes used in the episode. [10]
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Acetylcholine is a choline molecule that has been acetylated at the oxygen atom. Because of the charged ammonium group, acetylcholine does not penetrate lipid membranes. . Because of this, when the molecule is introduced externally, it remains in the extracellular space and at present it is considered that the molecule does not pass through the blood–brain