Reflex action | Voluntary action |
1. Initiated by some stimulus (touch, pain, pressure, heat, light) | 1. Initiated by a willing thought. |
2. Mainly self-protective due to the environment. | 2. Fulfillment of the desired goal. |
3. Commands originate mostly in the spinal cord and autonomic nervous system and a few in the brain as well. | 3. Commands originate in the brain. |
4. Involve muscles and glands. | 4. Involve only muscles. |