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4. Longest bone of a human body is ___________

• radius

• ulna

• femur

• fibula

5. The example of ball & socket joint is ____________

• shoulder

• skull

• ankle

• knee

7. Which of the following functions is not performed by the skeleton of human body?

• energy production

• locomotion

• protection

• support

9. Which of the following organs is/are protected by the rib cage?

• heart

• lungs

• kidneys

• all of these

10. Select the incorrect statement out of the following:

• ligaments join the two bones together

• tendons join the muscles to the bones

• endoskeleton is the skeleton present inside the body

• hinge joint allows movement in all directions

11. Skeleton of human adult will have __________ bones

• 220

• 200

• 206

• 260

12. Which of the following parts of the skull is movable?

• upper jaw

• ear

• lower jaw

• nose