What is the difference between reflex action and voluntary action?
Voluntary Actions | Reflex Action |
(1) A voluntary action is one that is consciously done. You want to pick something up, so you make the motion with your arm, hand (and even body) to reach, lower, close your fingers around, and lift the object. | (1) A reflex action is one that you don't think about and happens without deliberation. When your hand accidentally touches a hot stove, your arm jerks away without your conscious deliberation. When a doctor hits a certain part of your knee with a rubber mallet and your leg jumps, that is a reflex. It cannot be controlled. |
(2) A voluntary action stimulus sends a signal all the way up to the brain for evaluation, and the response signal comes from the brain after deliberation in order to affect the response. | (2) The stimulus for a reflex action only travels to the spine. It does not go to the brain. The response signal comes from the spine to the part of the body being acted upon. |
(3) They are slower compared to reflex actions. | (3) Reflex actions are much quicker than voluntary actions because of the distance the respective signals travel. |
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