| S.No | Involuntary actions | Reflex actions |
| 1 | They involve autonomic nervous system. | They involve all parts of voluntary nervous |
| 2 | They usually occur in response to internal stimuli. | They operate against harmful stimuli which are generally external and may cause injury. |
| 3 | They are connected with functioning of internal body parts. | They are connected with emergency. |
| 4 | These are regulated by medulla (hind-brain). | Reflex action is controlled by spinal cord. |
| 5 | The speed of response is slower. | The speed of response is very fast. |
| 6 | Example: Beating of heart muscle. | Example: Removal of hand with jerk when someone touches a hot object accidently. |
