Which component of the muscle stretch reflex initiates the reflex?
A)motor neuron
B)interneuron
C)muscle spindle
D)acetylcholine
E)Schwann cell

Question

Which component of the muscle stretch reflex initiates the reflex? ​
A)motor neuron
B)interneuron
C)muscle spindle
D)acetylcholine
E)Schwann cell ​

Quizplus · Accepted Answer

The muscle stretch reflex is initiated by the muscle spindle, which is a specialized sensory organ located within the muscle. When the muscle is stretched, the muscle spindle activates and sends a signal to the spinal cord via sensory neurons, which in turn triggers the reflex response. The motor neuron and interneuron are also involved in the reflex arc, but they do not initiate the reflex. Acetylcholine and Schwann cells are not directly involved in the muscle stretch reflex.

Which Component of the Muscle Stretch Reflex Initiates the Reflex