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Mydriasis: Quiz


Question 1: The former is innervated by the ________, the latter by the sympathetic nervous system.
Parasympathetic nervous systemAutonomic nervous systemNerveSubmandibular ganglion

Question 2: The ________ norepinephrine (noradrenaline) regulates many physiological processes in the body and brain.

Question 3: Drugs such as tropicamide are used in medicine to permit examination of the retina and other deep structures of the eye, and also to reduce painful ________ spasm (see cycloplegia).
Ciliary muscleIris dilator muscleScleraIris sphincter muscle

Question 4: Natural serotonin-boosting supplements such as L-Tryptophan and ________ are also potentially capable of this in excessive doses.

Question 5: Examples of such drugs include MDMA (as well as other MDxx compounds), fenfluramine, chlorphentermine, cocaine, and many widely-prescribed antidepressants such as the SSRIs, SNRIs, and ________.
Tricyclic antidepressantMonoamine oxidase inhibitorPardoprunoxTetracyclic antidepressant

Question 6: There have also been reports that the atypical psychedelic herb ________ causes mydriasis.
Salvinorin ASalvia divinorumPhencyclidineDextromethorphan

Question 7: A mydriatic is an agent that induces dilation of the ________.
Iris dilator musclePupilRetinaCiliary muscle

Question 8: The psychedelics, including LSD, psilocybin, mescaline, ________, and DMT, to name a few, all do so by agonizing the serotonergic 5-HT2A receptors in the brain.

Question 9: Natural release of the hormone ________ can cause mild to moderate mydriasis.

Question 10: ________ has been reported to lead to pupillary block [1] in a single case in combination with an ocular precondition.
Sexual intercourseEjaculationMasturbationOrgasm

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