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प्रश्न
Which of the following is not an involuntary action?
(a) vomiting
(b) chewing
(c) heart beat
(d) salivation
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उत्तर
(b) chewing
Chewing is a voluntary action, while actions like vomiting, heart beat and salivation are involuntary.
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संबंधित प्रश्न
Which part of the brain maintains posture and equilibrium of the body?
How are involuntary actions and reflex actions different from each other?
Give examples of unconditional reflexes
Give three examples of reflex actions.
What is meant by receptors and effectors? Give two examples of each.
A cell (or group of cells) in a sense organ which is sensitive to a particular type of stimulus is called :
(a) interceptor
(b) effector
(c) receptor
(d) acceptor
Which of the following helps in maintaining posture and balance of the human body?
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
Put a tick mark (✓) against the correct alternative in the following statement:
The smell of good food causes watering of your mouth. It is a
What is the difference between reflex action and voluntary action?
Explain the mechanism of reflex action with the help of a suitable diagram.
What is a reflex action?
Explain the following term :
Conditioned reflex
Give Technical Term:
The scientist, who conducted experiment on a dog to show conditioned reflex
Complete the following sentence with appropriate Word
The control of reflex action is through:
Which of the following is not involved in Knee-jerk reflex?
The given diagrammatic representation of reflex action shows knee jerk reflex.

Identify the parts labeled as A to E and select the correct option.
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.
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- 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.

