This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
Muscle spindle detects: 
Select and explain. 
A. Tension, B. Length, C. Proprioception, D. Stretch
B: Length
Answer: B: Length 
Explanation: Length Muscle spindle and Golgi tendon organ both receptors are impoant component of intrinsic muscle control.Muscle spindle --> detects muscle length and rate of change in muscle lengthGolgi tendon organ --> detects muscletension and rate of change in muscle tension.Muscle spindles are specialized mechanoreceptors which located within muscles.Provide information about the length and rate of changes in length of the muscle.