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startle reflex

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n.

The reflex response of an infant in which the limb and neck muscles contract when the infant is allowed to drop a short distance or is startled by a sudden noise or jolt.Moro's reflex parachute reflex
cochleopalpebral reflex

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Mississippi’s nickname comes from the magnificent trees that grow there. What is it?
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

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