5. Our skeletal system and skin

5. Our skeletal system and skin

1. Who discovered X - rays ?

1) Thomas Alva Edison
2) Louis Pasteur
3) Sir Issac Newton
4) Wilhelm conrad Roentgen

2. Which system gives definate shape to the body and protect organs and provide support ?

1) Skeleton
2) Muscular
3) Digestive
4) Nurvous

3. Which is the longest and strongest bone in our body ?

1) Skull
2) Backbone
3) Femur
4) Rib cage

4. How many bones are in rib cage ?

1) 25
2) 26
3) 24
4) 28

5. How many pairs of ribs in rib cage ?

1) 12
2) 24
3) 26
4) 6

6. Which is example of Immovable joint ?

1) Bones of skull
2) Bones of arms and legs
3) Elbow and knee joint
4) Shoulder and hip joint

7. Outermost layer of skin is called _________.

1) Epidermis
2) Dermis
3) Lamina
4) Subcutis

8. What is the function of melanin ?

1) decides the fairness or darkness of the skin
2) protect our skin
3) protect inner parts from ultraviolet sunrays
4) all of these

9. Which type of joint in knee ?

1) Fixed
2) Gliding
3) Ball and Socket
4) Hinge

10. Which type of joint is in our shoulder ?

1) Hinge
2) Ball and Socket
3) Fixed
4) Gliding

11. Human heart has _______ chambers ( rooms )

1) Five
2) Four
3) Two
4) Three

12. Breathing activity carried by ______ muscles.

1) Striated
2) Cardiac
3) Voluntary
4) Involuntary

13. Which activity carried by voluntary muscles ?

1) Walking
2) Running
3) Reading Book
4) All

14. a condition in which bones become weak and break easily is called ________.

1) Rickets
2) Arthritis
3) Osteoporosis
4) None

This is more feedback!

This is the feedback!

feedback!