Lowest level of Integration of Stretch reflex is at?
Ans. D Spinal CordRef: Ganong's Physiology, 23rd ed. chapter 9* When a skeletal muscle with an intact nerve supply is stretched, it contracts. This response is called the stretch reflex.* The stimulus that initiates the reflex is stretch of the muscle, and the response is contraction of the muscle being stretched.* The sense organ is a small encapsulated spindle like or fusiform shaped structure called the muscle spindle, located within the fleshy part of the muscle.* The impulses originating from the spindle are transmitted to the CNS by fast sensory fibers that pass directly to the motor neurons which supply the same muscle.* The neurotransmitter at the central synapse is glutamate. The stretch reflex is the best known and studied monosynaptic reflex and is typified by the knee jerk reflex.
Cerebral cortex
Medulla
Lower medulla
Spinal Cord
Nervous System