Chapter 4: Skeletal and Nervous System

40 MCQ Questions –

1. Which system provides the framework and support to the human body?

A. Nervous system
B. Skeletal system
C. Digestive system
D. Respiratory system

2. Which part protects the brain from injury?

A. Rib cage
B. Backbone
C. Skull
D. Pelvis

3. Which part of the skeletal system protects the heart and lungs?

A. Skull
B. Rib cage
C. Femur
D. Backbone

4. What are the small bones forming the backbone called?

A. Ribs
B. Vertebrae
C. Limbs
D. Girdles

5. Which structure protects the spinal cord?

A. Skull
B. Rib cage
C. Backbone
D. Femur

6. Which of the following is a function of the skeletal system?

A. Digestion
B. Breathing
C. Protection of internal organs
D. Smelling

7. Which bone is present in the thigh?

A. Femur
B. Tibia
C. Fibula
D. Radius

8. Which is the longest bone in the human body?

A. Skull
B. Femur
C. Rib
D. Vertebra

9. What connects the limbs to the main skeleton?

A. Nerves
B. Girdles
C. Ribs
D. Muscles

10. Which girdle connects the arms to the body?

A. Hip girdle
B. Shoulder girdle
C. Rib girdle
D. Pelvic cord

11. Which girdle connects the legs to the body?

A. Shoulder girdle
B. Hip girdle
C. Rib girdle
D. Skull girdle

12. What is the soft substance found inside some bones called?

A. Cartilage
B. Bone marrow
C. Muscle
D. Nerve

13. Which system controls and coordinates the activities of the body?

A. Skeletal system
B. Nervous system
C. Digestive system
D. Excretory system

14. What is the main control centre of the nervous system?

A. Heart
B. Brain
C. Spinal cord
D. Kidney

15. Which part connects the brain with different parts of the body?

A. Rib cage
B. Spinal cord
C. Skull
D. Femur

16. What carries messages between the brain and different parts of the body?

A. Bones
B. Nerves
C. Ribs
D. Muscles

17. Which of the following is NOT a part of the nervous system?

A. Brain
B. Spinal cord
C. Nerves
D. Stomach

18. Which sense organ helps us to see?

A. Ear
B. Eye
C. Nose
D. Tongue

19. Which sense organ helps us to hear?

A. Eye
B. Ear
C. Skin
D. Nose

20. Which sense organ helps us to smell?

A. Tongue
B. Nose
C. Ear
D. Skin

21. Which sense organ helps us to taste?

A. Tongue
B. Nose
C. Eye
D. Ear

22. Which sense organ helps us feel touch, heat and cold?

A. Tongue
B. Skin
C. Nose
D. Ear

23. A person suddenly pulls his hand away after touching a hot object. This is:

A. Digestion
B. Reflex action
C. Circulation
D. Respiration

24. Which statement best describes a reflex action?

A. A slow voluntary response
B. A quick and automatic response
C. A type of digestion
D. A movement of bones only

25. Which organ system helps in breathing?

A. Digestive system
B. Respiratory system
C. Nervous system
D. Skeletal system

26. Which organs are mainly involved in breathing?

A. Kidneys
B. Lungs
C. Stomach
D. Brain

27. Which system breaks down food into simpler substances?

A. Nervous system
B. Digestive system
C. Skeletal system
D. Circulatory system

28. Which system removes waste materials from the body?

A. Excretory system
B. Respiratory system
C. Skeletal system
D. Nervous system

29. Which organs remove wastes from the blood?

A. Lungs
B. Kidneys
C. Heart
D. Brain

30. Which system transports oxygen and nutrients around the body?

A. Digestive system
B. Circulatory system
C. Nervous system
D. Skeletal system

31. Which organ pumps blood throughout the body?

A. Brain
B. Heart
C. Kidney
D. Lung

32. Which of the following is correctly matched?

A. Skull — protects heart
B. Rib cage — protects brain
C. Backbone — protects spinal cord
D. Femur — protects lungs

33. Which of the following is correctly matched?

A. Eye — hearing
B. Ear — smelling
C. Nose — smelling
D. Tongue — seeing

34. Which statement about the brain is correct?

A. It pumps blood
B. It controls and coordinates body activities
C. It digests food
D. It filters blood

35. Which statement about nerves is correct?

A. They protect the heart
B. They carry messages in the body
C. They digest food
D. They produce bones

36. Which combination contains only parts of the skeletal system?

A. Skull, ribs, backbone
B. Brain, nerves, skull
C. Heart, ribs, lungs
D. Brain, spinal cord, nerves

37. Which combination contains only parts of the nervous system?

A. Skull, ribs, femur
B. Brain, spinal cord, nerves
C. Heart, blood, blood vessels
D. Lungs, nose, trachea

38. Why is the skeletal system important for movement?

A. Bones work with muscles to produce movement
B. Bones digest food
C. Bones carry sound
D. Bones produce oxygen

39. Which statement is TRUE about an adult human skeleton?

A. It has 106 bones
B. It has 206 bones
C. It has 306 bones
D. It has 406 bones

40. Which statement correctly compares the skeletal and nervous systems?

A. Skeletal system controls thoughts; nervous system gives shape
B. Skeletal system supports and protects the body; nervous system controls and coordinates activities
C. Both systems only help in digestion
D. Both systems only transport blood

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Answer Key

Q.	Ans.	Q.	Ans.
1	B	21	A
2	C	22	B
3	B	23	B
4	B	24	B
5	C	25	B
6	C	26	B
7	A	27	B
8	B	28	A
9	B	29	B
10	B	30	B
11	B	31	B
12	B	32	C
13	B	33	C
14	B	34	B
15	B	35	B
16	B	36	A
17	D	37	B
18	B	38	A
19	B	39	B
20	B	40	B