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प्रश्न
Which of the following is not an involuntary action?
विकल्प
Vomiting
Salivation
Heart beat
Chewing
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उत्तर
Chewing
Explanation -
Involuntary action is the actions which are happening "without" the conscious choice of the organism. So chewing which is under conscious control is a voluntary action.
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संबंधित प्रश्न
Define reflex arc. Give the flow chart of a spinal reflex arc.
Cerbellum, medulla and pons are the parts of :
(a) mid-brain
(b) hind-brain
(c) forebrain
(d) spinal cord
Which of the following statements is correct about receptors?
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?
Multiple choice question. Tick (✓) the correct choice:
Reflex actions occur under the control of
- brain
- medulla oblongata
- spinal cord
- cerebrum
What is the difference between reflex action and voluntary action?
Explain the mechanism of reflex action with the help of a suitable diagram.
State whether the following is simple reflex, conditioned reflex or neither of the two.
Knitting without looking
What type of reflex is the following?
Formation of goose-pimples in cold weather.
Mention, if the following statement is True or False
Reflex action is a unit of nervous action
Complete the following sentence with appropriate Word
The control of reflex action is through:
Differentiate between Voluntary and involuntary actions.
Which one of the following is not a simple reflex?
Categorise the following under stimulus and response.
Withdrawal of hand on touching a hot plate
Given alongside is a partial diagrammatic representation of a certain phenomenon pertaining to the nervous system.
 |
- Name the parts numbered 1-7.
- Name the phenomenon that the diagram depicts and define it.
- Give the technical term for the point of contact between two nerve cells.
- Name the parts not shown in the diagram that should be included to complete the pathway of the phenomenon.
State whether the following is simple reflex, conditioned reflex or neither of the two.
Sneezing
