Difference between revisions of "Reflex"
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==Origin== | ==Origin== | ||
[[Latin]] reflexus, past participle of reflectere to [[reflect]] | [[Latin]] reflexus, past participle of reflectere to [[reflect]] | ||
| − | *[ | + | *[https://en.wikipedia.org/wiki/16th_century 16th Century] |
==Definitions== | ==Definitions== | ||
*1a archaic : reflected heat, light, or color | *1a archaic : reflected heat, light, or color | ||
| Line 16: | Line 16: | ||
A '''reflex''' [[action]], also known as a reflex, is an involuntary and nearly [[instantaneous]] movement in [[response]] to a [[stimulus]]. In most [[contexts]], in particular those involving [[humans]], reflex [[actions]] are mediated via the reflex arc; this is not always true in other [[animals]], nor does it apply to casual uses of the term 'reflex'. | A '''reflex''' [[action]], also known as a reflex, is an involuntary and nearly [[instantaneous]] movement in [[response]] to a [[stimulus]]. In most [[contexts]], in particular those involving [[humans]], reflex [[actions]] are mediated via the reflex arc; this is not always true in other [[animals]], nor does it apply to casual uses of the term 'reflex'. | ||
*'''Reaction time''' | *'''Reaction time''' | ||
| − | For a reflex, [ | + | For a reflex, [https://en.wikipedia.org/wiki/Reaction_time reaction time] or latency is the time from the onset of a [[stimulus]] until the [[organism]] responds. |
| − | In animals, reaction time to visual stimuli is typically 150 to 300 milliseconds.[ | + | In animals, reaction time to visual stimuli is typically 150 to 300 milliseconds.[https://en.wikipedia.org/wiki/Reflex] |
[[Category: Biology]] | [[Category: Biology]] | ||
Latest revision as of 02:36, 13 December 2020
Origin
Latin reflexus, past participle of reflectere to reflect
Definitions
- 1a archaic : reflected heat, light, or color
- 2a : an automatic and often inborn response to a stimulus that involves a nerve impulse passing inward from a receptor to a nerve center and thence outward to an effector (as a muscle or gland) without reaching the level of consciousness — compare habit
- b : the process that culminates in a reflex and comprises reception, transmission, and reaction —called also reflex action
- c plural : the power of acting or responding with adequate speed
- d : a way of thinking or behaving
- 3: a linguistic element (as a word or sound) or system (as writing) that is derived from a prior and especially an older element or system <boat is the reflex of Old English bāt>
Description
A reflex action, also known as a reflex, is an involuntary and nearly instantaneous movement in response to a stimulus. In most contexts, in particular those involving humans, reflex actions are mediated via the reflex arc; this is not always true in other animals, nor does it apply to casual uses of the term 'reflex'.
- Reaction time
For a reflex, reaction time or latency is the time from the onset of a stimulus until the organism responds. In animals, reaction time to visual stimuli is typically 150 to 300 milliseconds.[1]
