That voice triggered long-forgotten reflexes.

Matt's instinct was to panic and run, and it was triggering reflexes in Stefan's head.

Roemheld syndrome is characterized strictly by abdominal maladies triggering reflexes in the heart.

The familiarity triggered arena-rock reflexes; fans sang along on Mr. Kravitz's "Hey Jude" imitation, "Let Love Rule," and waved their arms on cue.

Mechanical stimulation of the lungs can trigger certain reflexes as discovered in animal studies.

A sinus or nasal passage inflammation may trigger reflexes and cause asthma attacks.

Taylor theorizes that the main function of the ridged band is to trigger sexual reflexes.