How Do You Spell PARADOXICAL EXTENSOR REFLEX?

Pronunciation: [pˌaɹədˈɒksɪkə͡l ɛkstˈɛnsə ɹˈiːflɛks] (IPA)

The term "paradoxical extensor reflex" refers to a reflexive response of muscles in the legs that contract when the toes are stimulated, despite the intention of the individual to contract them in the opposite direction. The phonetic spelling of this word in IPA transcription is /ˌpærəˈdɒksɪkəl ɛkˈstɛnsɔː rɪˌflɛks/, which represents the nuances of pronunciation more accurately than the traditional English spelling. This term is commonly used in neurology to describe certain symptoms, particularly in spinal cord injuries.

PARADOXICAL EXTENSOR REFLEX Meaning and Definition

1. The term "paradoxical extensor reflex" refers to a neurological phenomenon characterized by an involuntary and abnormal extension of a limb in response to a specific stimulus. It is considered paradoxical because it contradicts the expected normal flexion response that should occur in the presence of the same stimulus.

   This reflex is commonly seen in individuals with certain neurological conditions or damage, such as corticospinal tract lesions or upper motor neuron disorders. When the affected limb experiences a noxious or painful stimulus, instead of flexing or retracting, it demonstrates an involuntary extension response, which may involve the muscles of the extremities or the trunk.

   The paradoxical extensor reflex is thought to result from a disruption in the normal inhibitory control mechanisms within the nervous system. It is believed that an imbalance between excitatory and inhibitory signals in the affected neural pathways leads to the inappropriate activation of extensor muscles, causing the limb to extend rather than flex.

   This reflex can have significant clinical implications, as its presence may indicate particular neurological conditions or impairments. It is often assessed during neurologic examinations as part of the evaluation of sensory and motor function. Understanding the paradoxical extensor reflex and its underlying mechanisms is crucial for diagnosing and managing certain neurological disorders, as well as designing appropriate treatment interventions to address the associated motor abnormalities.

2. Babinski r.

   A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.

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