Body Movements Important Questions

8th Standard

    Reg.No. :
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Science

Time : 02:00:00 Hrs
Total Marks : 50
    5 x 1 = 5
  1. Choose the word that is different from the others in the following and give reason.

    (a)

    Clavicle

    (b)

    Skull

    (c)

    Femur

    (d)

    Ball and socket

  2. The human skeleton has ---------- bones.

    (a)

    210

    (b)

    206

    (c)

    208

    (d)

    212

  3. The number of bones in axial skeleton are--------------

    (a)

    90

    (b)

    75

    (c)

    80

    (d)

    126

  4. The smallest bone in human body is--------------

    (a)

    Radius

    (b)

    Carpals

    (c)

    Phalanges

    (d)

    Stapes

  5. Earlobe has--------- joint.

    (a)

    Fibrous

    (b)

    Cartilaginous

    (c)

    Ball and socket

    (d)

    Gliding

  6. 5 x 1 = 5
  7. Earthworms move with the help of body muscles and ______________.

    ()

    Setae

  8. Bones are held together by-----------

    ()

    Ligament

  9. Tarsal bones exhibit ----------joint

    ()

    Gliding

  10. The first seven pairs of ribs are called---------------

    ()

    True ribs

  11. The flight muscles of birds are anchored to a bony flap called-----------------

    ()

    Keel

  12. 3 x 2 = 6
  13. The skeletal system has many other functions besides helping in movements.
    Do you know what they are?

    • Formation of blood cells
    • ____________________
    • ____________________
  14. Identify parts A and B and state their functions:

  15. Which one of the following is not matched correctly?

    1. Hip joint Ball and socket
    2. Hinge joint Atlas and Axis
    3. Gliding joint Tarsal bones
  16. 3 x 3 = 9
  17. Draw the given diagram and label the following parts.
    a) Ball
    b) Periosteum
    c) Yellow marrow
    d) Compact bone

  18. Copy the diagram of the human joint. Name the joint, label part A and B and write their functions.

  19. Give reason:
    a. The movement of animals is based on their skeletal system.
    b. Exercise or physical activity is one of the essential requirements for longlife.

  20. 5 x 5 = 25
  21. How are bones classified based on shape? Give examples

  22. (a) What is a synovial joint?
    (b) Explain any two types.

  23. How are ribs classified?

  24. Explain the movement in fishes.

  25. How are birds suited to aerial mode of life?

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