Nervous System Model Question Paper

10th Standard

    Reg.No. :
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Science

Time : 01:00:00 Hrs
Total Marks : 50
    5 x 1 = 5
  1. Sneezing, yawning etc are examples of _______

    (a)

    voluntary actions

    (b)

    involuntary actions

    (c)

    reflex actions

    (d)

    planned actions

  2. ______ is not a characteristic of neuron.

    (a)

    dendrites

    (b)

    axon

    (c)

    axolemma

    (d)

    can divide

  3. The axons may be covered by a protective sheath called ______

    (a)

    Myelin

    (b)

    Nodes of ranvier

    (c)

    Schwann cells

    (d)

    Nissl's granules

  4. ______ acts as a insulator.

    (a)

    myelin sheath(b)

    (b)

    synaptic junction

    (c)

    nodes of ranvier

    (d)

    glial cells

  5. Each neuron can transmit ______ nerve impulses per second.

    (a)

    2000

    (b)

    3000

    (c)

    1000

    (d)

    5000

  6. 4 x 2 = 8
  7. What are neuroglia.

  8. Name the parts of a neuron.

  9. Name the meninges.

  10. What is peripheral nervous system.

  11. 4 x 4 = 16
  12. Tabulate the different parts of the brain and their functions.

  13. Differentiate simple reflexes and conditional reflexes.

  14. Rani fell from her bike and had a head injury. She was hospitalized and discharged later. What do you think she could have done to save herself from this accident.

  15. 'A' contains a cerebrospinal fluid filled cavity known as 'B'. How many nerves are produced from A.
    (i) What isA?
    (ii) What is 'B'?

  16. 3 x 7 = 21
  17. Illustrate the structure and functions of brain.

  18. What will you do if someone pricks your hand with a needle? Elucidate the pathway of response with a neat labelled diagram.

  19. How nerve impulses are transferred from one neuron to next neuron?

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