intrinsic reflex

in·trin·sic re·flex

a reflex muscular contraction elicited by the application of a stimulus, usually stretching, to the muscle itself as opposed to a muscular contraction caused by an extrinsic stimulus, for example, skin, as in the abdominal skin reflexes.

intrinsic reflex

n. A reflex muscular contraction elicited by the application of a stimulus, usually stretching, to the muscle.

in·trin·sic re·flex

(in-trin'zik rē'fleks) A reflex muscular contraction elicited by the application of a stimulus, usually stretching, to the muscle itself as opposed to a muscular contraction caused by an extrinsic stimulus, e.g., skin, as in the abdominal skin reflexes.