Hyporeflexia

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Hyporeflexia is the opposite of hyperreflexia: the presence of below normal or absent reflexes. It can be tested for by using a reflex hammer. Hyporeflexia is generally associated with a lower motor neuron deficit (at the alpha motor neurons from the spinal cord to muscle); whereas, hyperreflexia is often attributed to upper motor neuron lesions (along the long motor tracts from the brain).

[edit] See also

• Areflexia, the absence of reflexes, often it is caused by spinal shock.
• Hyperreflexia, exaggerated reflexes.