Which part of the nervous system is responsible for controlling reflex action?

Explanation

The part of the nervous system responsible for controlling reflex actions is the "Spinal cord." Reflex actions are rapid, involuntary responses to certain stimuli, and they are often controlled at the level of the spinal cord, without involvement from the brain. When a sensory stimulus is detected by sensory neurons, the sensory information is transmitted to the spinal cord. Within the spinal cord, reflex arcs are present, which consist of sensory neurons, interneurons, and motor neurons. The interneurons in the spinal cord process the sensory input and quickly send motor commands back to the muscles or glands involved in the reflex response, bypassing the brain. This arrangement allows for immediate and automatic responses to certain stimuli, even without the conscious involvement of the brain. For example, the knee-jerk reflex (patellar reflex) is controlled by a simple reflex arc in the spinal cord that causes the leg to kick involuntarily when the patellar tendon is tapped.