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SAI International School

                                          Subject – Biology, Class-VI
                                         Topic-Movements in the body
                                                  Subtopic-Joints
                                                      Module-23
                                               Home Assignment- II
                                                    Worksheet-2

               1      Tissue that prevents the bones from rubbing against each other-
                          a)  Tendon
                          b)  Ligament
                          c)  Cartilage
                          d)  Muscles
               2      The forward and backward movement of our head is possible because of
                      the presence of-
                          a)  The ball and socket joint where our neck joins the head.
                          b)  The pivot joint where our neck joins the head.
                          c)  The hinge joint where our neck joins the head.
                          d)  The gliding joint where our neck joins the head.
               3      The bones are moved-
                          a)  by contraction and relaxation of muscles.
                          b)  by contraction and relaxation of joints.
                          c)  by contraction and relaxation of bones.
                          d)  by contraction and relaxation of bones and muscles.
               4      Choose the correct option from the following:
                       (a) Both Assertion and Reason are correct and Reason is the correct
                       explanation of Assertion.
                       (b) Both Assertion and Reason are correct, but Reason is not the correct
                       explanation of Assertion.
                       (c) If Assertion is correct but Reason is incorrect.
                       (d) If the Assertion is incorrect but the Reason is correct.
                       (e) If Assertion & Reason both are incorrect.
                      Assertion (A): The elbow joint is a hinge joint
                      Reason (R): Hinge joint allows movement in one direction.

               5      Choose the correct option from the following:
                       (a) Both Assertion and Reason are correct and Reason is the correct
                       explanation of Assertion.
                       (b) Both Assertion and Reason are correct, but Reason is not the correct
                       explanation of Assertion.
                       (c) If Assertion is correct but Reason is incorrect.
                       (d) If the Assertion is incorrect but the Reason is correct.
                       (e) If Assertion & Reason both are incorrect.
                      Assertion (A): Shoulder is the region where the forelimb or arm joins the
                      body.
                      Reason (R): The longest bone in the upper arm is called the humerus.

               6      The places in our body where two parts of our body seem to be joined are
                      called ‘X’. We can bend or move our bodies only at those points where
                      bones meet.
                          a)  Identify the ‘X’.
                          b)  Write the types of ‘X’ in our body?
                          c)  Give one example of each.

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