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A reflex is an act where a nerve sends an electric impulse to the spinal cord. After that it comes to the muscle and the muscle reacts.

A reflex action, also known as a reflex, is an involuntary and very quick movement in response to a stimulus.[1] A true reflex is a behaviour which is mediated via the reflex arc; this does not apply to casual uses of the term 'reflex'.

References[change | change source]

  1. Purves 2004. Neuroscience. 3rd ed, Massachusetts, Sinauer Associates.