Sucking reflex

From WikiLectures

The sucking reflex is elicited by touching or swiping a spatula, mentolabially or nasolabially or directly on the lips; when the reflex is present, the lips curl up. [1] Rarely, the patient reacts to irritation by literally "snapping" the lips, the so-called bulldog reflex.[2] Similar to the labial reflex, it is physiologically present only in infants. Pathologically, it is a manifestation of frontal release. [1]

Video - Examination of the sucking reflex, physiological finding (Centrum elektronického vzdělávání 1.LF UK)[1]


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  1. a b c  – FIALA, Ondřej – RŮŽIČKA, Evžen. Neurologické vyšetření - norma [online]. [cit. 2012-11-22]. <https://el.lf1.cuni.cz/neurologie>.
  2.  – BEDNAŘÍK, Josef. Klinická neurologie. 2. edition. 2008-. ISBN 9788073871574.