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Briefly describe how the following actio...

Briefly describe how the following actions take place :
The pupil of the eye becomes smaller

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ICSE-NEURAL CONTROL AND CO-ORDINATION -TEST YOUR PROGRESS ( SHORT/LONG ANSWER TYPE QUESTIONS )
  1. How will hearing be affected if the eustachian tubes get blocked?

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  2. Briefly describe how the following actions take place : The oval w...

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  3. Briefly describe how the following actions take place : The pupil ...

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  4. What will happen if the cerebellum is damaged?

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  5. Distinguish between the following pair : Fenestra rotunda and fenes...

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  6. Distinguish between the following pairs : Adrenergic and cholinergi...

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  7. Grey matter an White matter

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  8. Distinguish between the following pairs : Effects of sympathetic an...

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  9. Distinguish between the following pairs : Conduction of nerve impul...

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  10. Distinguish between the following pairs : Resting potential state a...

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  11. Make a labelled diagram of a vertical section of a mammalian eye. Desc...

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  12. What is the mechanism of hearing ?

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  13. Why do impulses in a neuron travel in one direction only? Trace the se...

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  14. Draw a labelled diagram showing the V.S. of the human brain. State two...

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  15. Draw a diagram of the vertical section of human eye and label any six ...

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  16. Name the photoreceptors of the retina. How are they functionally diffe...

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  17. A person unconsciously withdraws his hand suddenly with a jerk, after ...

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  18. What role do the ear ossicles play in hearing?

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  19. Draw a diagram to show the structure of a neuron with myelinated axon ...

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  20. Draw a labelled diagram of a portion of sectional view of retina showi...

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