How are involuntary actions and reflex actions different from each other?

Involuntary actions

Reflex actions

Involuntary actions are actions which are not controlled by our will.

Sudden action in response to something in the environment is called reflex action.

They are connected with functioning of internal body part

They are connected with response of stimuli.

Example- breathing, heartbeat, etc.

Example- Closing the eyes, when bright light is focused.

They are controlled by medulla of hind-brain.

They are generally controlled by spinal cord.