Reflexes: Difference between revisions
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== The Reflex Arc == | == The Reflex Arc == | ||
A '''reflex''' is an involuntary and nearly instantaneous movement in response to a stimulus. The reflex is an automatic response to a stimulus that does not receive or need conscious thought as it occurs through a reflex arc. Reflex arcs act on an impulse before that impulse reaches the brain.<ref>Wikipedia. [https://en.wikipedia.org/wiki/Reflex Reflex]. Available from: https://en.wikipedia.org/wiki/Reflex (last accessed 21.4.2019) | A '''reflex''' is an involuntary and nearly instantaneous movement in response to a stimulus. The reflex is an automatic response to a stimulus that does not receive or need conscious thought as it occurs through a reflex arc. Reflex arcs act on an impulse before that impulse reaches the brain.<ref>Wikipedia. [https://en.wikipedia.org/wiki/Reflex Reflex]. Available from: https://en.wikipedia.org/wiki/Reflex (last accessed 21.4.2019) | ||
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* Polysynaptic ie multiple interneurons (also called relay neurons) that interface between the sensory and motor neurons in the reflex pathway.<ref>Lumen. [https://courses.lumenlearning.com/boundless-ap/chapter/reflexes/ Reflexes.] https://courses.lumenlearning.com/boundless-ap/chapter/reflexes/ (last accessed 21.4.2019)</ref> | * Polysynaptic ie multiple interneurons (also called relay neurons) that interface between the sensory and motor neurons in the reflex pathway.<ref>Lumen. [https://courses.lumenlearning.com/boundless-ap/chapter/reflexes/ Reflexes.] https://courses.lumenlearning.com/boundless-ap/chapter/reflexes/ (last accessed 21.4.2019)</ref> | ||
== | [[File:Reflex.jpg|frameless]] Illustration of the reflex arc. | ||
The video below illustrates the reflex arc | |||
{{#ev:youtube|https://www.youtube.com/watch?v=_qXS9KjyDC4&feature=youtu.be|width}}<ref>Dr Matt and Dr Mikes Medical youtube. Spinal reflex Available from: https://www.youtube.com/watch?v=_qXS9KjyDC4&feature=youtu.be (last accessed 21.4.2019)</ref> | |||
== Importance or reflex testing == | |||
== Evidence == | == Evidence == | ||
Revision as of 05:05, 21 April 2019
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The Reflex Arc[edit | edit source]
A reflex is an involuntary and nearly instantaneous movement in response to a stimulus. The reflex is an automatic response to a stimulus that does not receive or need conscious thought as it occurs through a reflex arc. Reflex arcs act on an impulse before that impulse reaches the brain.[1]
Relex arcs can be
- Monosynaptic ie contain only two neurons, a sensory and a motor neuron. Examples of monosynaptic reflex arcs in humans include the patellar reflex and the Achilles reflex.
- Polysynaptic ie multiple interneurons (also called relay neurons) that interface between the sensory and motor neurons in the reflex pathway.[2]
Illustration of the reflex arc.
The video below illustrates the reflex arc
Importance or reflex testing[edit | edit source]
Evidence[edit | edit source]
Provide the evidence for this technique here
Resources[edit | edit source]
add any relevant resources here
References[edit | edit source]
- ↑ Wikipedia. Reflex. Available from: https://en.wikipedia.org/wiki/Reflex (last accessed 21.4.2019)
- ↑ Lumen. Reflexes. https://courses.lumenlearning.com/boundless-ap/chapter/reflexes/ (last accessed 21.4.2019)
- ↑ Dr Matt and Dr Mikes Medical youtube. Spinal reflex Available from: https://www.youtube.com/watch?v=_qXS9KjyDC4&feature=youtu.be (last accessed 21.4.2019)
