How is a reflex different from a voluntary movement?

Answer 1

A voluntary action is when someone decides to do something eg. flinches when someone goes to hit them. A reflex is something that your body does natural eg. heartbeat, sweat, repair etc. Trust me we are doing this in class sooooooooo boring!

Answer 2

A Reflex action is very different from a voluntary movement because a reflex action is is an involuntary and nearly instantaneous movement in response to astimulus while a voluntary movement is a controlled movement of the body.The sensory neuron is split between the limb doing the movement (say jerking your hand away from a flame) and the brain, so by the time the stimulus has reached the brain, the other stimulus has already reached the hand, forcing the hand to pull away.

Answer 3

No. A reflex action is an involuntary action. There are different types of reflexes that involve a different combination of sensory and motor neurons. The simplest has only two neurons and passes through the spinal cord and then to an adjacent muscle that is triggered to contract. An example of this is the classic knee-jerk reflex that you sometimes get in the doctor's office when they tap a soft little hammer just below your knee and you involuntarily give a small kick. That is something that you cannot voluntarily control. Other, more complex reflexes can be modified by behavior and have some degree of conscious involvement, though for the most part, all reflexes are considered involuntary. Some other examples are: moving hand due to heat or a cut or say.... nail prick? are the examples of reflex action....

Answer 4

Reflexes travel from the source of the nerve impulse to the spinal cord and are immediately sent back to a muscle or muscle group to cause a reflex.

Voluntary actions have impulses sent to the brain for evaluation. Since doing so takes longer, reflexes must be evaluated quickly in the spinal cord to cause a quicker reaction. For example, if you touch something hot, your reflexes remove your hand from the surface before your brain even recognizes that the surface was hot.

Answer 5

Reflex movement is the involuntary reaction caused by the bodies nervous system. The brain senses a need to move your body and subconsciously reacts to whatever action has been dealt upon it. Nerve impulses signal the brain to activate a part of your body.

Voluntary action is your conscious decision to move a part of your body.

Answer 6

It can be. But reflexes like gagging, sneezing, muscle spindles contracting, etc. Are not

I. P. Pavlov proved that reflexes can be conditioned but are involuntary. He concluded it from his experiments in which he caused the dog to salivate after hearing a ring instead of smelling or tasting the food.

Answer 7

Reflexes use a bridge in the spinal cord called the reflex arc, which allows intense sensory afferent nerve signals to partly bridge across the spinal cord directly to efferent nerves, which activate muscles and cause a movement while the rest of the afferent signal reaches the brain for sensation of the stimuli. This allows for fast reaction to painful stimuli before sensation of pain is even perceived by the brain. Voluntary movement uses signals originating in the brain that are sent down efferent nerves to activate muscles for movement. Mild afferent signals from sensors travel toward the brain (and don't cross the reflex arc) where sensation is perceived, and then efferent signals are sent back from the brain to muscles to control movement. This is a slower, but more controlled process.

Answer 8

A voluntary behavior involves consciousness.

Answer 9

no u