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प्रश्न
Give three examples of reflex actions.
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उत्तर
Coughing, yawning and blinking of eyes are examples of reflex actions.
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संबंधित प्रश्न
What is the role of the brain in reflex action?
Give examples of unconditional reflexes
What are the various sense organs in our body?
Name the function of cerebrum.
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 part of brain which takes part in regulating respiration in the human body is :
(a) medulla
(b) pons
(c) cerebellum
(d) cerebrum
Which of the following statements are true?
(i) sudden action in response to something in the environment is called reflex action
(ii) sensory neurons carry electrical signals from spinal cord to muscles in a reflex action
(iii) motor neurons carry signals from receptors to spinal cord in a reflex action
(iv) the pathway of transmitting signals from a receptor to a muscle is a reflex action
With the help of suitable example, describe reflex action.
Define voluntary and reflex actions. Give examples of each.
what do we refer to in the nervous system when we say:
Natural and conditioned …………………
Explain the mechanism of reflex action with the help of a suitable diagram.
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
Differentiate between Voluntary and involuntary actions.
What will you do if someone pricks your hand with a needle? Elucidate the pathway of response with a neat labelled diagram.
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.
How is the mode of action in beating of the heart different from reflex actions? Give four examples.
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.
