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प्रश्न
What is the difference between a voluntary and an involuntary action? Which kind of action is digestion? Explain your choice.
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उत्तर
| Voluntary action | Involuntary action |
| A voluntary action is under the control of one's will. | An involuntary action is not under the control of one's will. |
Digestion is an involuntary action as it occurs inside our body without our conscious choice.
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संबंधित प्रश्न
State whether coughing is a voluntary action or reflex action.
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The involuntary actions in the body are controlled by :
(a) medulla in forebrain
(b)medulla in hindbrain
(c) medulla in spinal cord
(d) medulla in midbrain
All the voluntary actions of our body are controlled by :
(a) cerebrum
(b) cerebellum
(c) pons
(d) medulla
The contraction of pupil of the eye in the presence of bright light is an example of :
(a) Voluntary reflex
(b) Spinal reflex
(c) Cerebral reflex
(d) Adrenal reflex
P is a cell (or group of cells) in the human body which is sensitive to a particular type of stimulus and conveys the messages to CNS through nerves Q. On the other hand, R is a part of the human body which can respond to a stimulus according to the instructions sent from the CNS through nerves S.
(a) What is P? Name five organs which contain cells (or group of cells) like P.
(b) Name the nerves Q.
(c) What is R? Give two examples of R.
(d) Name nerves S.
(e) How do messages travel through the nerves Q and S?
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A reflex action is a spontaneous response to a stimulus.
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Give an example for conditioned reflexes.
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