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pupil dilation response

См. также в других словарях:

  • Dilation — (or dilatation) refers to an enlargement or expansion in bulk or extent, the opposite of contraction. It derives from the Latin dilatare, to spread wide . In physiology: Pupillary dilation, dilation of the pupil of the eye Cervical dilation, the… …   Wikipedia

  • Pupil — The opening of the iris. The pupil may appear to open (dilate) and close (constrict) but it is really the iris that is the prime mover; the pupil is merely the absence of iris. The pupil determines how much light is let into the eye. Both pupils… …   Medical dictionary

  • Fight-or-flight response — Refimprove|date=February 2007The fight or flight response, also called the fright , fight or flight response, hyperarousal or the acute stress response, was first described by Walter Cannon in 1915. [… …   Wikipedia

  • Pupillary response — or dilation of the pupil is a physiological response that varies the size of the pupil of the eye via the iris dilator muscle. It can have a variety of causes. It may be an involuntary reflex reaction to exposure to light. Or it may indicate… …   Wikipedia

  • Blown pupil — is an informal medical term used by physicians and nurses to refer to sudden pupillary dilation and loss of ability to constrict in response to light. It is an important clinical sign in physical diagnosis, especially in emergency department or… …   Wikipedia

  • Pupilometer — is the name used for two different devices one that measures the distance between pupils, and one that measures the pupil s response to visual stimuli. Pupillary distance measurement In the most common sense, a Pupilometer is a tool for measuring …   Wikipedia

  • Mydriasis — Dilated pupil redirects here. This term also arises in eye examinations. Mydriasis Classification and external resources Pupil dilated for examination by optometrist. ICD 10 …   Wikipedia

  • Sympathetic nervous system — Infobox Anatomy Name = Sympathetic nervous system Caption = The sympathetic nervous system extends from the thoracic to lumbar vertebrae and has connections with the thoracic, abdominal, and pelvic plexuses. Mesh = Sympathetic+Nervous+SystemThe… …   Wikipedia

  • Photoreceptor cell — This article is about cellular photoreceptors. For other types of photoreceptors, see Photoreceptor (disambiguation). Rods and cones redirects here. For the Blue Man Group song, see Rods and Cones (song). Neuron: Photoreceptor Cell …   Wikipedia

  • Brain herniation — Classification and external resources MRI showing injury due to brain herniation ICD 10 G …   Wikipedia

  • autonomic nerv sys — ▪ Table Important physiological effects mediated by the autonomic nervous system organ response sympathetic activity receptor type parasympathetic activity eye pupil dilation α1 pupil constriction heart increase in rate and force β1 decrease in… …   Universalium

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