Available Answers

1. 1.

   Tick mark (√) the correct answers in the following

   1. In humans, the 11^th and 12^th pairs of ribs hang freely and are called:
      1. Free ribs
      2. Floating ribs
      3. Hanging ribs
      4. Movable ribs
   2. Shoulder joint is an example of:
      1. thigh joint
      2. gliding joint
      3. pivot joint
      4. ball and socket joint
   3. Which one of the following joints allows movements in almost all directions?
      1. Ball and socket joint
      2. thigh joint
      3. Pivot joint
      4. Gliding joint
   4. The first cervical vertebra is called:
      1. axis
      2. sacral
      3. coccyx
      4. atlas
   5. Axial skeleton is made up of:
      1. Skull and vertebral column
      2. Girdles
      3. Girdles and lungs
      4. Skull, vertebral column, ribs and sternum
   6. Appendicular skeleton is made up of:
      1. Shoulder girdle and hip girdle
      2. Forlimbs and hindlimbs
      3. Girdles and ribs
      4. Skull and vertebral column
2. 2.

   Define the term locomotion.

3. 3.

   Give any five functions of human skeleton.

4. 4.

   Name the four kinds of bones on the basis of their shape. Also give one example of each.

5. 5.

   Name the following:

   1. The two main divisions of the skeleton in our body ___________________.
   2. The large hole at the back part of the cranium. ________________________.
   3. The ring-like bones which form the vertebral column of the human body _________________.
   4. The canal in the vertebral column through which the spinal cord runs ____________________.
   5. The cavity into which fits the rounded upper head of the humerus bone _____________.
   6. The cup-shaped cavity into which lies the round head of the thigh bone _____________.
   7. The fluid which provides lubrication to the joints with considerate degree of movement _________________.
6. 6.

   Fill in the blanks by suitable words :

   1. The appendicular skeleton mainly consists of ______________ and ______________.
   2. The two leg bones are _______________ and ______________.
   3. The bones of the brain box are joined together by ________________ joints.
   4. The four fused vertebrae of the rudimentary tail of our body are called _______________.
   5. The collar bone of the shoulder girdle is known as ____________.