Name the sense organs.

Name any two internal organs and any two external organs.

Fill in the blanks.

1. There are ______ (206/306) bones in an adult body.
2. Bones of the skull and hip are _________ (long/flat).
3. ______________ (Skeleton/Girdles) is a long bony structure that provides support to the body.
4. ______________ (Shinbone/Kneecap) protects our knee joint from getting hurt or damaged.
5. ______________ (Bone marrow/Bone space) is present inside the bones which produces red blood cells.

Complete the table.

Write one word for the following:

1. The joint that allows back and forth movement.
2. The joint found between the bones of the vertebral column.
3. The muscles that work on their own and whose movements cannot be controlled by us.
4. The joint found at the ankle and wrist.
5. The joint which helps in the movement of our head in upward, sideways and downward direction.