tonic reflex


Also found in: Dictionary, Thesaurus, Encyclopedia.

ton·ic re·flex

the occurrence of an appreciable interval after the production of a reflex before relaxation, for example, the leg remains up for a time after a knee jerk.
Synonym(s): Gordon symptom

Gordon,

Alfred, U.S. neurologist, 1874-1953.
Gordon reflex - dorsal flexion of the great toe produced by firm lateral pressure on the calf muscles. Synonym(s): paradoxical flexor reflex
Gordon sign - a sign of organic hemiplegia. Synonym(s): finger phenomenon
Gordon symptom - the occurrence of an appreciable interval after the production of a reflex before relaxation. Synonym(s): tonic reflex