Nervous System Four and Seven Marks Questions

10th Standard

    Reg.No. :


Time : 01:00:00 Hrs
Total Marks : 55
    5 x 4 = 20
  1. Tabulate the different parts of the brain and their functions.

  2. List the function of cerebrospinal fluid.

  3. Differentiate simple reflexes and conditional reflexes.

  4. 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.

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

  6. 5 x 7 = 35
  7. With a neat labelled diagram explain the structure of a neuron.

  8. Describe the structure of spinal cord.

  9. Classify neurons based on its structure.

  10. ‘A’ is a cylindrical structure that begins from the lower end of medulla and extend downwards. It is enclosed in bony cage ‘B’ and covered by membranes ‘C’. As many as ‘D’ pairs of nerves arise from the structure ‘A’.
    (i) What is A?
    (ii) Name (a) bony cage ‘B’ and (b) membranes ‘C’
    (iii) How much is D?

  11. Our body contains a large number of cells ‘L’ which are the longest cells in the body. L has long and short branch called as ‘M’ and ‘N’ respectively. There is a gap ‘O’ between two ‘L’ cells, through which nerve impulse transfer by release of chemical substance ‘P’.
    (i) Name the cells L
    (ii) What are M and N?
    (iii) What is the gap O?
    (iv) Name the chemical substance P


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