Achilles tendon reflex
[Achilles, hero of the Iliad, whose vulnerable spot was his heel]
Plantar flexion resulting from contraction of the calf muscles after a sharp blow to the Achilles tendon, activating the S1 spinal reflex. The variations and their significance correspond closely to those of the knee jerk. It is exaggerated in upper motor neuron disease and diminished or absent in lower motor neuron disease.
SYN: SEE: Achilles jerk; SEE: ankle reflex; SEE: triceps surae jerk; SEE: triceps surae reflex
Venes, Donald, editor. "Achilles Tendon Reflex." Taber's Medical Dictionary, 24th ed., F.A. Davis Company, 2021. Nursing Central, nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/755299/all/Achilles_tendon_reflex.
Achilles tendon reflex. In: Venes DD, ed. Taber's Medical Dictionary. F.A. Davis Company; 2021. https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/755299/all/Achilles_tendon_reflex. Accessed June 3, 2023.
Achilles tendon reflex. (2021). In Venes, D. (Ed.), Taber's Medical Dictionary (24th ed.). F.A. Davis Company. https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/755299/all/Achilles_tendon_reflex
Achilles Tendon Reflex [Internet]. In: Venes DD, editors. Taber's Medical Dictionary. F.A. Davis Company; 2021. [cited 2023 June 03]. Available from: https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/755299/all/Achilles_tendon_reflex.
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