How are involuntary actions and reflex actions different?


Involuntary action – Involuntary action is the set of muscle movements that do not require thinking. But it is controlled by the brain for example beating the heartbeat.

Reflex action – Reflex action is rapid and spontaneous action in response to any stimulus which doesnโ€™t involve the brain. For example โ€“ shutting eyes immediately when bright light is focused on them.

Difference between involuntary action and reflex action

Following is the table which is a quick summary of the difference between involuntary action and reflex action:

Involuntary actions Reflex actions
Involuntary actions take place without the conscious choice of an organism. Reflex actions are those actions that take place along with stimuli.
These actions are controlled by the medulla oblongata or the midbrain. These actions are controlled by the spinal cord.
The speed is relatively slower. The speed is very quick.
Example: Beating of heart Example: Blinking of eyes.

Related Questions:

  1. What is the role of the brain in reflex action?
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  3. Compare and contrast nervous and hormonal mechanisms for control

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  1. arkopal ghosh banerjee

    nice explanation but to short to go with !!!!

  2. This answer is quite easy๐Ÿ˜‹๐Ÿฅž๐Ÿ˜๐Ÿ˜Š๐Ÿ˜‰๐Ÿ˜‰

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