1. Why do adults not grow taller?

• A) Because they do not eat enough.
• B) Because their growth plates have fused.
• C) Because their muscles have stopped growing.
• D) Because they exercise too much.

2. What are X-ray images used for?

• A) Measuring body temperature.
• B) Viewing the inside of the body to diagnose medical problems.
• C) Measuring heart rate.
• D) Viewing muscle strength.

3. What is an organ system?

• A) A group of cells that perform a specific function.
• B) A group of organs that work together to perform a specific function.
• C) A type of muscle tissue.
• D) A part of the circulatory system.

4. What are the functions of the human skeletal system?

• A) Digestion and circulation.
• B) Protecting internal organs and providing structure to the body.
• C) Producing hormones.
• D) Absorbing nutrients.

5. How many bones are in the adult human skeleton?

• A) 100
• B) 206
• C) 300
• D) 150

6. How many bones are in a newborn baby?

• A) 206
• B) 300+
• C) 150
• D) 100

7. What are the main components of the human skeleton?

• A) Heart, lungs, liver, and kidneys.
• B) Skull, backbone, rib cage, limbs, and girdles.
• C) Skin, muscles, brain, and stomach.
• D) Eyes, ears, nose, and mouth.

8. What is orthopaedics?

• A) The study of the digestive system.
• B) The branch of medicine that treats disorders of the musculo-skeletal system.
• C) The study of brain disorders.
• D) The study of skin diseases.

9. How does the skeletal system assist in hearing?

• A) Through three ear bones called ossicles.
• B) By amplifying sound waves through the skull.
• C) By vibrating the muscles in the ear.
• D) By sending electrical signals directly to the brain.

10. What is the outer layer of bone called?

• A) Spongy bone
• B) Compact bone
• C) Bone marrow
• D) Cartilage

11. How many bones make up the skull?

• A) 22
• B) 33
• C) 206
• D) 8

12. How many cranial bones are there?

• A) 22
• B) 33
• C) 8
• D) 206

13. What is unique about the lower jaw?

• A) It is fixed.
• B) It is movable.
• C) It has no teeth.
• D) It is made of cartilage.

14. How many bones does the backbone consist of?

• A) 22
• B) 33
• C) 8
• D) 206

15. What is the function of the backbone?

• A) Protects the brain.
• B) Protects the spinal cord.
• C) Digests food.
• D) Pumps blood.

16. What are the first and last bones of the backbone called?

• A) Axis and vertebra
• B) Skull and tail bone
• C) Atlas and tail bone
• D) Femur and humerus

17. What are floating ribs?

• A) Ribs attached to the sternum.
• B) Ribs attached only to the backbone.
• C) Ribs attached to the pelvis.
• D) Ribs floating in the body.

18. How many pairs of limbs do humans have?

• A) One
• B) Two
• C) Three
• D) Four

19. What is the longest bone in the forelimbs?

• A) Femur
• B) Humerus
• C) Tibia
• D) Ulna

20. How is the wrist composed?

• A) Eight small bones in two rows.
• B) One large bone.
• C) Six small bones in three rows.
• D) Four large bones in two rows.

21. What is the longest, strongest, and largest bone in the body?

• A) Humerus
• B) Tibia
• C) Femur
• D) Ulna

22. What dietary recommendations are given for strong bones and muscles?

• A) Eat junk food.
• B) Avoid exercise.
• C) Eat right, exercise daily, and lead an active life.
• D) Drink only water.

23. What is the ‘funny bone’?

• A) A bone in the elbow.
• B) A nerve in the elbow.
• C) A bone in the knee.
• D) A nerve in the knee.

24. What are the two pairs of girdles in the human body?

• A) Pectoral and pelvic girdles.
• B) Skull and backbone.
• C) Rib cage and spine.
• D) Arms and legs.

25. What is the function of the pectoral girdle?

• A) Digests food.
• B) Connects the forelimbs to the skeleton.
• C) Pumps blood.
• D) Protects the brain.

26. Which bones are part of the pectoral girdle?

• A) Skull and ribs.
• B) Scapula and clavicle.
• C) Femur and tibia.
• D) Humerus and ulna.

27. What functions does the pelvic girdle serve?

• A) Supports the weight of the body.
• B) Allows the hind limbs to attach to it.
• C) Protects organs such as the urinary bladder and reproductive organs.
• D) All of the above.

28. Why does the skeleton have many bones of different shapes and sizes?

• A) To prevent movement.
• B) To allow for a range of movements.
• C) To make the body heavier.
• D) To reduce flexibility.

29. What is a joint?

• A) A structure where two or more bones are connected.
• B) A type of muscle tissue.
• C) A bone in the skull.
• D) A part of the digestive system.

30. What are immovable joints?

• A) Joints that allow movement.
• B) Joints that do not allow any movement.
• C) Joints that are found in the knee.
• D) Joints that are found in the elbow.

31. What are movable joints and their classification?

• A) Joints that allow movement, classified based on the type of movement they allow.
• B) Joints that do not allow movement.
• C) Joints that are found in the skull.
• D) Joints that are part of the digestive system.

32. What is a ball-and-socket joint?

• A) A type of joint that allows movement in one direction.
• B) A type of joint that allows movement in all directions, including rotational movement.
• C) A type of joint that is immovable.
• D) A type of joint found in the skull.

33. What is a hinge joint?

• A) A joint that allows movement in all directions.
• B) A joint that allows back-and-forth movement.
• C) A joint that is immovable.
• D) A joint found in the skull.

34. What is a pivot joint?

• A) A joint that allows movement in all directions.
• B) A joint that allows back-and-forth movement.
• C) A joint that allows rotational movement.
• D) A joint found in the skull.

35. What is a gliding joint?

• A) A joint that allows movement in all directions.
• B) A joint that allows back-and-forth and side-to-side movement.
• C) A joint that is immovable.
• D) A joint found in the skull.

36. What is a ligament?

• A) A stretchy tissue that attaches muscles to bones.
• B) A tough but flexible tissue found between the bones in joints.
• C) A strong and slightly elastic tissue that binds one bone to another bone.
• D) A bone in the skull.

37. What is a tendon?

• A) A stretchy tissue that attaches muscles to bones.
• B) A tough but flexible tissue found between the bones in joints.
• C) A strong and slightly elastic tissue that binds one bone to another bone.
• D) A bone in the skull.

38. What is cartilage?

• A) A stretchy tissue that attaches muscles to bones.
• B) A tough but flexible tissue that is softer than bone.
• C) A strong and slightly elastic tissue that binds one bone to another bone.
• D) A bone in the skull.

39. How can a balanced diet help in building stronger bones?

• A) By providing essential nutrients such as calcium and vitamin D.
• B) By increasing the amount of fat in the body.
• C) By reducing the need for exercise.
• D) By increasing the amount of sugar in the diet.

40. What bone conditions can result from poor bone health?

• A) Arthritis and scoliosis.
• B) Rickets and osteoporosis.
• C) Bursitis and tendinitis.
• D) Fractures and sprains.

41. What is osteoporosis?

• A) A condition where bones become weak and brittle.
• B) A condition where bones become stronger.
• C) A condition where muscles become weak.
• D) A condition where joints become immovable.

42. Which type of joint is found in the wrist and ankle?

• A) Ball-and-socket joint
• B) Hinge joint
• C) Pivot joint
• D) Gliding joint

43. What is the longest bone in the forelimbs?

• A) Femur
• B) Humerus
• C) Tibia
• D) Ulna

44. Where do two or more bones get connected?

• A) At a muscle
• B) At a joint
• C) At a tendon
• D) At a ligament

45. How many bones form the brain box?

• A) Six
• B) Eight
• C) Ten
• D) Twelve

46. How many bones are present in an adult human skeleton?

• A) 100
• B) 150
• C) 206
• D) 300

47. How many muscles are there in the human body?

• A) 206
• B) 320
• C) 640
• D) 1000

48. How are muscles connected to bones?

• A) By ligaments
• B) By cartilage
• C) By tendons
• D) By joints

49. What types of movements can muscles facilitate?

• A) Only fast movements like running
• B) Only slow movements like stretching
• C) Both fast movements like running and slow movements like stretching
• D) No movement

50. What does it mean for muscle cells to be contractible?

• A) They can stretch.
• B) They can shorten when they contract.
• C) They can become rigid.
• D) They can multiply.

51. Can muscles push bones?

• A) Yes, muscles can push bones.
• B) No, muscles can only pull bones.
• C) Yes, muscles can push and pull bones.
• D) No, muscles do not affect bones.

52. What are involuntary muscles and where are they found?

• A) Muscles that are under our control, found in the limbs.
• B) Muscles that are not under our control, found in the internal walls of blood vessels and organs.
• C) Muscles that are not under our control, found only in the heart.
• D) Muscles that are under our control, found in the stomach.

53. What is another name for involuntary muscles?

• A) Smooth muscles
• B) Cardiac muscles
• C) Skeletal muscles
• D) Voluntary muscles

54. What are cardiac muscles and where are they found?

• A) Muscles found in the arms
• B) Muscles found in the legs
• C) Muscles found in the heart
• D) Muscles found in the brain

55. How do cardiac muscles function and are they under our control?

• A) They contract to pump blood and are under our control.
• B) They contract to pump blood and are not under our control.
• C) They do not contract and are not under our control.
• D) They do not contract and are under our control.

56. What is the Jaipur Leg and who invented it?

• A) A prosthetic leg made of rubber and wood, invented by Dr. P.K. Sethi and Ram Chandar Sharma.
• B) A new type of shoe invented for marathon runners.
• C) A leg brace used for treating fractures.
• D) A robotic leg designed for space travel.

57. Who uses the Jaipur Leg?

• A) People who have had below-the-knee amputations.
• B) People who have leg fractures.
• C) People who run marathons.
• D) People who need leg support.

58. What recognition did Dr. P.K. Sethi receive for his invention?

• A) Nobel Prize
• B) Ramon Magsaysay Award
• C) Pulitzer Prize
• D) Olympic Medal

59. What is the vertebral column?

• A) The backbone formed by a chain of vertebrae.
• B) The rib cage formed by a chain of ribs.
• C) The skull formed by a chain of bones.
• D) The pelvis formed by a chain of bones.

60. What is the spinal cord?

• A) A chain of vertebrae.
• B) A thick cord of nerves that passes through the backbone.
• C) A bone in the back.
• D) A muscle in the back.

61. What are floating ribs?

• A) Ribs attached to the sternum.
• B) Ribs attached only to the backbone and free in the front.
• C) Ribs attached to the pelvis.
• D) Ribs floating in the body.

62. What is the pectoral girdle?

• A) The pair of bones that form the shoulder.
• B) The pair of bones that form the hip.
• C) The pair of bones that form the knee.
• D) The pair of bones that form the ankle.

63. What is the pelvic girdle?

• A) The pair of bones that form the shoulder.
• B) The pair of bones that form the hip.
• C) The pair of bones that form the knee.
• D) The pair of bones that form the ankle.

64. What is a joint?

• A) A structure where two or more bones get connected.
• B) A muscle in the body.
• C) A nerve in the body.
• D) A part of the digestive system.

65. What is a ligament?

• A) A strong tissue that binds bones to bones.
• B) A strong tissue that binds muscles to bones.
• C) A strong tissue that binds nerves to bones.
• D) A strong tissue that binds skin to bones.

66. What is a tendon?

• A) A strong tissue that binds bones to bones.
• B) A strong tissue that binds muscles to bones.
• C) A strong tissue that binds nerves to bones.
• D) A strong tissue that binds skin to bones.

67. What is cartilage?

• A) A strong and flexible tissue present between the joints.
• B) A strong tissue that binds muscles to bones.
• C) A strong tissue that binds nerves to bones.
• D) A strong tissue that binds skin to bones.

68. What are voluntary muscles?

• A) Muscles that are under our control.
• B) Muscles that are not under our control.
• C) Muscles found in the heart.
• D) Muscles found in the stomach.

69. What are involuntary muscles?

• A) Muscles that are under our control.
• B) Muscles that are not under our control.
• C) Muscles found in the limbs.
• D) Muscles found in the skeleton.

70. What are cardiac muscles?

• A) Muscles found in the arms.
• B) Muscles found in the legs.
• C) Muscles found in the heart.
• D) Muscles found in the stomach.

71. What are the primary functions of the skeleton?

• A) Protect internal organs and give structure to the body.
• B) Produce hormones.
• C) Absorb nutrients.
• D) Digest food.

72. What components make up the human skeleton?

• A) Heart, lungs, liver, and kidneys.
• B) Skull, backbone, rib cage, limbs, and girdles.
• C) Skin, muscles, brain, and stomach.
• D) Eyes, ears, nose, and mouth.

73. How do joints contribute to body movement?

• A) By preventing movement.
• B) By allowing the body to move in many ways.
• C) By reducing flexibility.
• D) By making the body heavier.

74. What are the different kinds of movable joints?

• A) Ball-and-socket joints, hinge joints, pivot joints, and gliding joints.
• B) Fixed joints, hinge joints, pivot joints, and gliding joints.
• C) Ball-and-socket joints, hinge joints, fixed joints, and gliding joints.
• D) Ball-and-socket joints, hinge joints, pivot joints, and fixed joints.

75. What role do muscles play in the skeletal system?

• A) Bring movement to the skeleton by contracting and relaxing.
• B) Produce hormones.
• C) Absorb nutrients.
• D) Digest food.

76. What are the three types of muscles?

• A) Voluntary muscles, involuntary muscles, and cardiac muscles.
• B) Smooth muscles, skeletal muscles, and cardiac muscles.
• C) Voluntary muscles, smooth muscles, and cardiac muscles.
• D) Smooth muscles, skeletal muscles, and voluntary muscles.

77. What protects the spinal cord and carries the weight of the body?

• A) Skull
• B) Femur
• C) Hip girdle
• D) Backbone

78. The first seven pairs of ribs are called?

• A) True ribs
• B) Sternum
• C) False ribs
• D) Floating ribs

79. The longest bone in the forelimbs is?

• A) Femur
• B) Humerus
• C) Sternum
• D) Vertebra

80. A joint that allows your head to turn sideways is called?

• A) Hinge joint
• B) Ball-and-socket joint
• C) Pivot joint
• D) Gliding joint

81. The bones of the skull that form the framework of the face are called?

• A) Cranial bones
• B) Facial bones
• C) Atlas
• D) Vertebrae

82. Muscles are connected to bones by ligaments. (True/False)

• A) True
• B) False

83. Skeletal muscles are involuntary muscles. (True/False)

• A) True
• B) False

84. Floating ribs do not attach to the breast bone. (True/False)

• A) True
• B) False

85. The bone marrow is the site of blood cell production. (True/False)

• A) True
• B) False

86. The pectoral girdle protects the developing baby in a pregnant woman. (True/False)

• A) True
• B) False

87. Wrists and ankles have pivot joints. (True/False)

• A) True
• B) False

88. Name two organs protected by the rib cage.

• A) Heart and liver
• B) Heart and lungs
• C) Lungs and stomach
• D) Brain and heart

89. Name the parts of our skeletal system.

• A) Heart, lungs, liver, and kidneys.
• B) Skull, backbone, rib cage, limbs, and girdles.
• C) Skin, muscles, brain, and stomach.
• D) Eyes, ears, nose, and mouth.

90. What is cartilage?

• A) A stretchy tissue that attaches muscles to bones.
• B) A tough but flexible tissue that is softer than bone.
• C) A strong and slightly elastic tissue that binds one bone to another bone.
• D) A bone in the skull.

91. Name the longest bone of our body.

• A) Femur
• B) Humerus
• C) Tibia
• D) Ulna

92. Which part of our skull has a movable joint?

• A) Upper jaw
• B) Lower jaw
• C) Cheekbone
• D) Nose

93. Write the difference between ligament and tendon.

• A) Ligament binds muscles to bones; tendon binds bones to bones.
• B) Ligament binds bones to bones; tendon binds muscles to bones.
• C) Ligament binds muscles to muscles; tendon binds bones to bones.
• D) Ligament binds nerves to bones; tendon binds muscles to bones.

94. Define voluntary and involuntary muscles with examples.

• A) Voluntary muscles are under our control (e.g., biceps); involuntary muscles are not under our control (e.g., heart muscles).
• B) Voluntary muscles are not under our control (e.g., biceps); involuntary muscles are under our control (e.g., heart muscles).
• C) Voluntary muscles are smooth (e.g., intestines); involuntary muscles are skeletal (e.g., arms).
• D) Voluntary muscles are skeletal (e.g., heart); involuntary muscles are smooth (e.g., arms).

95. What is a joint? Name four movable joints with examples.

• A) A joint is where two or more muscles connect; examples: elbow, knee, wrist, ankle.
• B) A joint is where two or more bones connect; examples: shoulder (ball-and-socket), knee (hinge), neck (pivot), wrist (gliding).
• C) A joint is where two or more nerves connect; examples: shoulder, knee, neck, wrist.
• D) A joint is where two or more organs connect; examples: shoulder, knee, neck, wrist.

96. Write the functions of the skeletal system.

• A) Digest food and absorb nutrients.
• B) Protect internal organs, provide structure, allow movement, produce blood cells, store minerals.
• C) Pump blood and transport oxygen.
• D) Produce hormones and regulate body temperature.

97. Name the parts of the axial skeleton and appendicular skeleton.

• A) Axial: Skull, vertebral column, rib cage; Appendicular: Limbs and girdles.
• B) Axial: Heart, lungs, liver; Appendicular: Limbs and muscles.
• C) Axial: Skin, muscles, brain; Appendicular: Limbs and bones.
• D) Axial: Eyes, ears, nose; Appendicular: Limbs and organs.

98. What are movable joints?

• A) Joints that allow a range of movements between the bones they connect.
• B) Joints that do not allow any movement.
• C) Joints that are found in the skull.
• D) Joints that are part of the digestive system.

99. Describe the functions of movable joints and classify them.

• A) Movable joints allow a range of movements: ball-and-socket, hinge, pivot, gliding.
• B) Movable joints do not allow any movement.
• C) Movable joints are found in the skull.
• D) Movable joints are part of the digestive system.

100. Write the functions of pectoral and pelvic girdles.

• A) Pectoral girdle: Digests food; Pelvic girdle: Pumps blood.
• B) Pectoral girdle: Provides attachment points for muscles of the shoulder and elbow; Pelvic girdle: Supports body weight, attaches hind limbs, protects pelvic organs.
• C) Pectoral girdle: Produces hormones; Pelvic girdle: Absorbs nutrients.
• D) Pectoral girdle: Transports oxygen; Pelvic girdle: Regulates body temperature.

101. Why do muscles work in pairs? Explain with an example.

• A) Muscles work in pairs because they can only push bones; e.g., biceps and triceps.
• B) Muscles work in pairs because they can only pull bones; e.g., biceps and triceps.
• C) Muscles work in pairs because they can both push and pull bones; e.g., biceps and triceps.
• D) Muscles work in pairs because they do not affect bones; e.g., biceps and triceps.

102. Why do muscles grow larger and stronger in weightlifters?

• A) Due to hypertrophy from resistance training, causing small tears in muscle fibers that repair and fuse, increasing mass and strength.
• B) Due to a reduction in muscle fibers from weightlifting.
• C) Due to a decrease in growth hormones.
• D) Due to a decrease in protein synthesis.

103. Can you increase or decrease the pumping action of your heart?

• A) Yes, through regular cardiovascular exercise.
• B) No, the pumping action cannot be influenced.
• C) Yes, by reducing the amount of exercise.
• D) No, by following a sedentary lifestyle.

104. Why are aged people more prone to bone fractures?

• A) Because bones lose density and strength with age (osteoporosis).
• B) Because bones become stronger with age.
• C) Because muscles grow stronger with age.
• D) Because bones do not change with age.

105. Is there a difference in the size of the pelvic girdle between men and women?

• A) Yes, women’s pelvic girdles are broader, shallower, and more circular to accommodate childbirth; men’s are narrower, deeper, and more heart-shaped.
• B) No, there is no difference.
• C) Yes, men’s pelvic girdles are broader and shallower.
• D) No, women’s pelvic girdles are narrower and deeper.

106. A child of your domestic helper is suffering from rickets. Would you help? How?

• A) Yes, by ensuring sunlight exposure and a diet rich in vitamin D and calcium, consulting a healthcare provider for supplements, and providing information about local health services.
• B) No, rickets cannot be treated.
• C) Yes, by reducing the child’s physical activity.
• D) No, by not changing the child’s diet.