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Pupils of both sexes dilated after seeing pictures of people of the opposite sex. In females, the difference in pupil size occurred also after seeing pictures of babies and mothers with babies. This examination showed that pupils react not only to the changes of intensity of light (pupillary light reflex) but also reflect arousal or emotions.
Nerves involved in the resizing of the pupil connect to the pretectal nucleus of the high midbrain, bypassing the lateral geniculate nucleus and the primary visual cortex. From the pretectal nucleus neurons send axons to neurons of the Edinger-Westphal nucleus whose visceromotor axons run along both the left and right oculomotor nerves .
The Neurological Pupil index, or NPi, is an algorithm developed by NeurOptics, Inc., that removes subjectivity from the pupillary evaluation. A patient's pupil measurement (including variables such as size, latency, constriction velocity, dilation velocity, etc.) is obtained using a pupillometer, and the measurement is compared against a normative model of pupil reaction to light and ...
In rare cases, Horner's syndrome may be the result of repeated, minor head trauma, such as being hit with a soccer ball. Although most causes are relatively benign, Horner's syndrome may reflect serious disease in the neck or chest (such as a Pancoast tumor (tumor in the apex of the lung) or thyrocervical venous dilatation). [citation needed]
Head injuries Danny's Triad: Painful urination, testicular pain, diarrhea: Chlamydia Dieulafoy's triad: hyperesthesia of the skin, exquisite tenderness and guarding over McBurney's point: Acute appendicitis: Dietl's crisis Renal colic, swelling in loin which disappears after urination Hydronephrosis Fanconi syndrome triad
A six-year-old boy died after suffering a head injury in a fall, prompting heartfelt tributes from the head teacher at his school. Mohammed Yasin Uddin, who went to Marlborough Primary School in ...
A mydriatic pupil will remain excessively large even in a bright environment. The excitation of the radial fibres of the iris which increases the pupillary aperture is referred to as a mydriasis. More generally, mydriasis also refers to the natural dilation of pupils, for instance in low light conditions or under sympathetic stimulation.
30 Color Photos Photographers Took 100 Years Ago That Still Mesmerize Us Today. Mariia Tkachenko. December 16, 2024 at 6:47 AM. ... "After the color image is established, the black silver-based ...