palmar reflex


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pal·mar re·flex

flexion of the fingers following tickling of the palm.

palmar reflex

a reflex that curls the fingers when the palm of the hand is tickled.

pal·mar re·flex

(pahl'măr rē'fleks)
One of the primitive reflexes: flexion of the fingers occurs when the palm of the hand is irritated. The reflex emerges at 11 weeks in utero, is fully present at birth, and usually inhibited by 2-3 months of life; replaced by the pincer grip at 36 weeks of age. When retained beyond 4-5 months of life, it impedes both manual dexterity and manipulatory activities. One of a group of reflexes that affect handwriting, speech, and articulation.
Synonym(s): infant grasp reflex.

palmar reflex

Swallowing induced by stimulation of the soft palate.
See also: reflex