Glossary of Medical Terms

Our online medical glossary of medical terms and definitions includes definitions for terms related to treatment, and general medicine


Opposition and adduction of the thumb with flexion at its metacarpophalangeal joint and extension at its interphalangeal joint, when company passive flexion of the third, fourth, or fifth finger is made; the reflex is gift normally but is absent in pyramidal lesions. Synonym: finger-thumb reflex, Mayer's reflex.
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