Question

Reflex actions are mainly controlled by:

• A. Spinal cord
• B. Medulla oblongata
• C. Hypothalamus
• D. Cerebellum

Answer 1

The correct option is A Spinal cord

The reflex is an automatic response to a stimulus that does not receive or need conscious thought. In order to make the response quick, the spinal cord controls the reflex actions. The sensory neurons are activated by a stimulus (e.g. heat). Sensory neurons pass the nerve impulses to the relay neurons present in the spinal cord. The relay neurons pass the nerve impulses to the motor neurons. Finally, the motor neurons act on the effector organs (e.g. muscle).

So, option A is the correct option.