chin reflex

jaw re·flex

a spasmodic contraction of the temporal muscles following a downward tap on the loosely hanging mandible.

Synonym(s): chin jerk, chin reflex, jaw jerk, mandibular reflex, masseter reflex

Farlex Partner Medical Dictionary © Farlex 2012

chin reflex

A clonic movement resulting from percussion or stroking of the lower jaw.

Synonym: jaw jerk; jaw reflex

See also: reflex

Medical Dictionary, © 2009 Farlex and Partners