Ankle reflex: Difference between revisions
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==Overview== | |||
The '''ankle jerk reflex''', also known as the '''Achilles reflex''', occurs when the [[Achilles tendon]] is tapped while the foot is [[dorsiflexion|dorsi-flexed]]. A positive result would be the jerking of the foot towards its plantar surface. The Achilles [[Reflex action|reflex]] checks if the S1 and S2 [[nerve]] roots are intact and could be indicative of [[sciatic nerve]] [[pathology]]. It is classically delayed in [[hypothyroidism]]. This reflex is usually absent in disk herniations at the L5-S1 level. | |||
==Related Chapters== | |||
== | |||
* [[Tonic vibration reflex]] | * [[Tonic vibration reflex]] | ||
* [[Neurological examination]] | * [[Neurological examination]] | ||
Latest revision as of 17:39, 27 November 2012
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
The ankle jerk reflex, also known as the Achilles reflex, occurs when the Achilles tendon is tapped while the foot is dorsi-flexed. A positive result would be the jerking of the foot towards its plantar surface. The Achilles reflex checks if the S1 and S2 nerve roots are intact and could be indicative of sciatic nerve pathology. It is classically delayed in hypothyroidism. This reflex is usually absent in disk herniations at the L5-S1 level.
Related Chapters