Question

Why are the reflex actions controlled by the spinal cord and not the brain?

Answer 1

Central nervous system:

1. It consists of the spinal cord and brain.
2. The brain is the main organ that controls the major functioning of the whole body of organisms.
3. The spinal cord is a long tube-like structure enclosed by a vertebral column. It carries signals from the brain and transmits them to different body parts.

Reason for reflex actions to be controlled by the spinal cord and not the brain:

1. Reflex actions are involuntary actions that involve reflex arc.
2. The information through the reflex arc does not travel directly to the brain in most vertebrates.
3. Instead, it travels through the synapse and reaches the spinal cord, which acts as the leading center for these actions and sends an appropriate response for the stimulus.