This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General physiology, Subject name: Physiology
Stimulus for stretch reflex 
Select and explain. 
A. Passive stretch, B. Active stretch, C. Both, D. None
A: Passive stretch
Answer: A: Passive stretch 
Explanation: The stretch reflex or myotatic reflex refers to the contraction of a muscle in response to its passive stretching by increasing its contractility as long as the stretch is within physiological limits. (Ref: <a href="