Question:
What is skeleton? Draw a diagram to show the human skeleton.
Answer:
The bones in our body form a framework to give a shape to the body. The framework is called skeleton
Body Movements
Q 1.
Name organs that are protected by the rib cage?
Q 3.
Which part of the cockroach help in flying?
Q 4.
Write two ways by which we may know the shape of human skeleton.
Q 5.
Name the parts of the body which help in movement.
Q 6.
Give two examples of ball and socket joint.
Q 7.
If there are no joints then will it be possible to move?
Q 8.
Name the various types of joint.
Q 9.
Give two examples of hinge joints.
Q 10.
Name a bird which can swim in water.
Q 11.
What are joints? Write the names of various types of joints.
Q 12.
What do you mean by streamlined?
Q 13.
Name a bird which can swim in water.
Q 15.
What is cavity in bone?
Q 16.
Why are fractured bones plastered?
Q 17.
Name two animals which move without bones.
Q 18.
If you tie a scale with your arm, are you able to bend your elbow?
Q 19.
What are pelvic bones?
Q 20.
Name the organ in cockroach which helps in walking.
Q 22.
Name the places where two parts of the body are seen to be joined together.
Q 23.
Write the differences between bones and cartilage.
Q 24.
Give an example of fixed joint.
Q 25.
What do you mean by fractured bone?
Q 26.
At which part does the arm rotate?
Q 28.
Answer the following questions:
(a) What is a ball and socket joint?
(b) Which of the skull bones are movable?
(c) Why can our elbow not move backwards?
Q 29.
What do you mean by movement?
Q 30.
Can we bend our body at every part?
Q 31.
What are cartilages?
Q 32.
Indicate ‘true' and false' among the following sentences:
(a) The movement and locomotion of all animals is exactly the same.
(b) The cartilages are harder than bones.
(c) The finger bones do not have joints.
(d) The fore arm has two bones.
(e) Cockroaches have an outer skeleton.
Q 33.
Name the three components of skeleton.
Q 34.
How many types of joints are there?
Q 35.
Name three animals that have streamlined body.
Q 36.
Why do we need two muscles together to move a bone?
Q 37.
How does the snake move?
Q 38.
How is a bird's body adapted for flying?
Q 39.
If there are no joints then will it be possible to move?
Q 40.
Give an example of gliding joint.
Q 41.
Give an example of pivotal joint.
Q 42.
Many people suffer from a problem called arthritis. Explain its connection with movement.
Q 43.
Give an example of animal which can walk, climb and fly in the air.
Q 44.
What are shoulder bones?
Q 45.
How does the snail move?
Q 46.
Name the three components of skeleton.
Q 47.
Fill in the blanks:
(a) Joints of the bones help in the_____________ of the body.
(b) A combination of bones and cartilages forms the_______________ of the body.
(c) The bones at the elbow are joined by a______________
(d) The contraction of the____________ pulls the bones during
Q 48.
How do the muscles work?
Q 49.
How does fish move in water?
Q 50.
Match the items in column I with one or more items of column II:
| Column I |
Column II |
| (i) Upper jaw |
(a) have fins on the body |
| (ii) Fish |
(b) has an outer skeleton |
| (iii) Ribs |
(c) can fly in the air |
| (iv) Snail |
(d) is an immovable joint |
| (v) Cockroach |
(e) protect the heart |
| |
(f) shows very slow movement |
| |
(g) have a streamlined body |
