Class FOURSUBJECT SCIENCEChapter 1. Our Body
1. Which is central control system of the body?
Brain
2. A headache is not a pain of?
Brain
3. Most headaches happen in the?
Nerves
4. Which part of body stores the food?
Stomach
5. Stomach passes liquid mixture to which part of body?
Small Intestine
6. Which part absorbs all nutrients of the food?
Small Intestine
7. How many primary teeth are there?
20
8. How many permanent teeth do adults have?
32
9. Which part of body helps elephants to control their temperature?
Ears
10. Which elephants have larger ears than Asian elephants?
African
11. The part of ear which is visible called?
External Ear
12. Which are the breathing centers of body?
Lungs
13. Where lungs of humans are located?
Chest Cavity
14. Lungs are protected by?
Ribcage
15. Where does the inhaled air enter?
Lungs
16. Wind pipe where clean air enters is known as?
Trachea
17. In how many small tubes Trachea is divided?
Two (Bronchial Tube)
18. Each Bronchial tube is joined with?
Lungs
19. Asthma is main disorder of?
Lungs
20. Which is the pumping station of the body?
Heart
21. The average human heart beats about how many times in a minute?
72
22. How many bones are there in human body?
206
23. Places where two bones meet are called?
Joints
24. Outer layer of the body is called?
Skin
25. Largest outer part of body is?
Skin
26. What is thickness of human skin?
2 millimeters
27. The part of body that gives you shape is?
Skelton
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