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Why do impulses in a neuron travel in on...

Why do impulses in a neuron travel in one direction only? Trace the sequence of the parts through which the nerve impulse passed in a reflex arc.

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ICSE-NEURAL CONTROL AND CO-ORDINATION -TEST YOUR PROGRESS ( SHORT/LONG ANSWER TYPE QUESTIONS )
  1. Make a labelled diagram of a vertical section of a mammalian eye. Desc...

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  2. What is the mechanism of hearing ?

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

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

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

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

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

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

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

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

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  11. Beside blood, what supplies nutrients to the neurons in the brain?

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  12. Draw a vertical section of the human eye and label any six of those pa...

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  13. Describe the location and the role of ciliary body in the human eye.

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  14. Where is pneumotoxic centre located in humans? What is its significanc...

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  15. Draw a schematic diagram to show the components of a reflex arc. Use a...

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  16. Where are Bowman's glands located in the nasal chamber? How does the s...

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  17. Explain any two functions of cerebrospinal fluid in humans.

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  18. What is action potential? Describe how the nerve impulse is propagated...

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  19. What are the two divisions of the autonomic nervous system? Show by ta...

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  20. Draw a diagram of the vertical section of human eye and label the foll...

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