<prompt> Tapping the tendon of a muscle may elicit?Contraction of the muscleRelaxation of the muscleNo responseFibrillation of the muscle  <response>: A Contraction of the muscle Tapping the patellar tendon elicits the knee jerk, a stretch reflex of the quadriceps femoris muscle, because the tap on the tendon stretches the muscle Tapping on the tendon of the triceps brachii, for example, causes an extensor response at the elbow as a result of reflex contraction of the triceps; Tapping on the Achilles tendon causes an ankle jerk due to reflex contraction of the gastrocnemius; Tapping on the side of the face causes a stretch reflex in the masseter 