Topic outline

    • Body Movements

      Q1. Fill in the blanks.

                               i.        We are able to bend or rotate our body in places where two parts of our body seem to be joined together. These places are called joints.

                              ii.        We are able to bend or rotate our body only at joints.

                             iii.        Bones and cartilage forms skeleton of human body.

                             iv.        Skeleton gives frame and shape to our body and helps in movement.

                              v.        In a pivotal joint a cylindrical bone rotates in a ring.

                             vi.        X-ray images are used to find out about any possible injuries that might have happened to the bones.

               vii.        Skull protects brain.

               viii.        Our skeleton is made up of many bones, joints and cartilage.

                             ix.        The rounded structure snail carries on its back is called shell.

                              x.        Fins on the body of fish mainly help to keep the balance of their body.

                             xi.        Snakes have a long backbone.

               xii.        Snails move with the help of a muscular foot.

      Q2. True/False

                               i.        Bones cannot be bent. True

                              ii.        Hinge Joint allows movement in all directions. False

                             iii.        Elbow has fixed joint. False

                             iv.        Bone in our arm is joined to our shoulder by ball and socket joint. True

                              v.        The joint between the upper jaw and rest of head is moveable. False

                             vi.        Bones in our body forms framework to give shape to our body. This framework is known as skeleton. True

               vii.        Ribs join the chest bone and back bone together to form box called skeleton. False

               viii.        The skull is made of many bones joined together. True

                              ix.        Cartilage is also found in the joints of the body. True

                               x.        Cockroaches have three pair of wings attached to breast. False

                              xi.        The snake moves forward very fast and not in a straight line. True

      Q3. Write name of two animals which can move without bones.

      Ans. Snail and Earthworm

      Q4. Write three animals that have streamlined body.

      Ans. Fish, Whale and Birds


      Q5. Name one animal which can walk and climb as well as fly in the air.

      Ans. Cockroaches               

      Q6. Name two birds which can swim in water.

      Ans. Ducks and Swans


      Q7. Name an aquatic animal whose skeleton is made entirely of cartilages?

      Ans. Shark

      Q8. Where is cartilage found?

      Ans. Cartilage is found in joints and ear.

      Q9. What is cavity in bones?

      Ans. Cavity is the hollow space in the bones.

      Q10. Which organs are protected by the rib cage?

      Ans. Heart and lungs are protected by the rib cage.


      Q11. What are ribs?

      Ans. The ribs are thin, flat, curved bones that form the rib cage.


      Q12. What is skull?

      Ans. The skull is made up of many bones joined together.


      Q13. Name the organ which help cockroach in walking.

      Ans. Cockroaches have three pairs of legs. These help in walking.

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