List the major events that occur in the patellar reflex from the striking of the patellar ligament

The following are the real occasions that happen in the automatic reflex from the striking of the patellar tendon beneath the knee to the subsequent reaction: 
1. Sensory neurons conveys flag to the spinal rope. 
2. The interneuron transfers it to the engine neuron. 
3. The engine neuron conveys flag to the muscle.