Q8 of 9 Page 88

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

The figure represents Synovial joints.

Part ‘A’ represents humerus and part ‘B’ represents ulna. Humerus is a long bone in arm nd helps in abduction and extension of arm. Ulna helps the wrist joint to rotate.


More from this chapter

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5

The skeletal system has many other functions besides helping in movements.

Do you know what they are?

 6

Identify parts A and B and state their functions:

 7

Draw the given diagram and label the following parts.


a) Ball:


b) Periosteum:


c) Yellow marrow:


d) Compact bone:

 9

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 long life.