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Mydriasis is the dilation of the pupil, usually having a non-physiological cause, [3] or sometimes a physiological pupillary response. [4] Non-physiological causes of mydriasis include disease, trauma, or the use of certain types of drug.
Dilation and constriction of the pupil. Pupillary response is a physiological response that varies the size of the pupil, via the optic and oculomotor cranial nerve.. A constriction response (), [1] is the narrowing of the pupil, which may be caused by scleral buckles or drugs such as opiates/opioids or anti-hypertension medications.
Halloween shop in Derry, Northern Ireland, selling masks. Halloween costumes were traditionally modeled after figures such as vampires, ghosts, skeletons, scary looking witches, and devils. [66] Over time, the costume selection extended to include popular characters from fiction, celebrities, and generic archetypes such as ninjas and princesses.
Light entering the eye strikes three different photoreceptors in the retina: the familiar rods and cones used in image forming and the more newly discovered photosensitive ganglion cells. The ganglion cells give information about ambient light levels, and react sluggishly compared to the rods and cones.
Christ's Charge to Peter, one of the Raphael Cartoons, c. 1516, a full-size cartoon design for a tapestry. In fine art, a cartoon (from Italian: cartone and Dutch: karton—words describing strong, heavy paper or pasteboard and cognates for carton) is a full-size drawing made on sturdy paper as a design or modello for a painting, stained glass, or tapestry.
When you think of “gory” animals, creatures like great white sharks, tigers, and vampire bats might come to mind. But the most gruesome defense mechanism of any animal belongs to something ...
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We mean it. Read no further until you really want some clues or you've completely given up and want the answers ASAP. Get ready for all of today's NYT 'Connections’ hints and answers for #580 on ...