FACTOID # 21: 15% of Army recruits from South Dakota are Native American, which is roughly the same percentage for female Army recruits in the state.
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Encyclopedia > Median raphe nucleus
Brain: Median raphe nucleus
Latin nucleus raphes medianus, nucleus centralis superior
NeuroNames hier-557
Dorlands/Elsevier n_11/12582808

The median raphe nucleus (or superior central nucleus) is composed of polygonal, fusiform and pyriform neurons and exists rostral to the nucleus raphe pontis. Latin is an ancient Indo-European language originally spoken in Latium, the region immediately surrounding Rome. ... NeuroNames is a system of nomenclature for the brain and related structures. ... Elseviers logo. ... The Pontine raphe nucleus is one of the raphe nuclei. ...

One fascinating trait of the NCS is its inhibition by lysergic acid diethylamide and psilocin, two serotonin antagonist hallucinogens. The inactivation of the nucleus centralis superior via LSD produces a dose dependent inactivation in the NCS, but not in the raphe pallidus. LSD blotter paper D-Lysergic Acid Diethylamide, commonly called acid, LSD, or LSD-25, is a powerful semisynthetic hallucinogen and psychedelic entheogen. ... Psilocin, sometimes misspelled psilocine or psilotsin, is a psychedelic (hallucinogenic) mushroom alkaloid. ... Hallucinogenic drugs or hallucinogens are drugs that can alter sensory perceptions, elicit alternate states of consciousness, or cause hallucinations. ...

The free-moving cats, in which this was discovered, exhibited dose dependent behavioral changes [1].

See also

The raphe nuclei (Latin for the bit in a fold or seam) is a moderately sized cluster of nuclei found in the brain stem, and releases serotonin to the rest of the brain. ...


  1. ^ Trulson, M.E., Preussler DW and Trulson V.M. Differential effects of hallucinogenic drugs on the activity of serotonin-containing neurons in the nucleus centralis superior and nucleus raphe pallidus in free-moving cats. American Society for Pharmacology and Experimental Therapeutics Volume 228, Issue 1, pp. 94-102, 01/01/1984



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