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प्रश्न
How are involuntary actions and reflex actions different from each other?
उत्तर १
Involuntary action is a set of muscle movements that do not require thinking. However, it is controlled by the brain, for example, the beating of the heart. On the other hand, reflex action is rapid and spontaneous in response to any stimulus. For example, closing one's eyes immediately when a bright light is focused.
उत्तर २
| Involuntary actions | Reflex actions |
| These are normal involuntary actions of internal or external organs of the body. | These are sudden involuntary responses to external stimuli. |
| They occur in reaction to internal cues. | They operate in opposition to damaging stimuli, most of which are external. |
| They are related to how interior body parts work | They are related to emergencies, that is, reactions to external stimuli. |
| It occurs without the organism's volition. Heart rate, breathing, etc., as examples. | The brain, not the spinal cord, is involved in several reflexes. |
| These actions are controlled by the brain. | These actions are controlled by the spinal cord. |
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संबंधित प्रश्न
Name the most important part of the human brain.
Give three examples of reflex actions.
Explain the difference between of the following pair of terms :
receptor and effector
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Give the various functions of brain.
The part of brain which controls the involuntary action such as heart beat, breathing, blood pressure, etc. is :
(a) pons
(b) medulla
(c) cerebrum
(d) cerebellum
The gustatory receptors of our body are in one of the following organs. This organ is :
a) ear
(b) nose
(c) tongue
(d) skin
With the help of suitable example, describe reflex action.
State whether the following is simple reflex, conditioned reflex or neither of the two.
Sudden application of brakes of the cycle on sighting an obstacle in front
List in tabular form three distinguishing features between cerebrum and cerebellum.
What is a reflex action?
State whether the following is
Salivation when food is put in the mouth.
Complete the following sentence with appropriate Word
The control of reflex action is through:
A change in the environment that causes an animal to react is called ______.
Reflex arc allows the rapid response of the body to a stimulus.
Which sensory organ is involved in vertigo (sensation of oneself or objects spinning around)?
