Learn and practice Human Body and Anatomy with 100 MCQs and answers. Covers organs, systems, bones, muscles, and hormones—ideal for students and competitive exams.
The human body is a complex and well-organized system made up of organs, tissues, bones, and cells that work together to sustain life. Practicing Human Body & Anatomy MCQs with answers is an effective way to understand how different body systems function and interact. This article presents 100 carefully selected multiple choice questions covering topics such as organs, bones, muscles, blood, hormones, and major body systems. These anatomy MCQs are ideal for students, biology learners, and competitive exam aspirants who want to strengthen their fundamental knowledge in a clear, simple, and exam-oriented format.
Human Body & Anatomy – 100 MCQs with Answers
1. Which organ controls the entire human body?
A. Heart
B. Brain
C. Lungs
D. Liver
Answer: B
2. How many bones are there in an adult human body?
A. 200
B. 206
C. 210
D. 216
Answer: B
3. Which is the largest organ of the human body?
A. Liver
B. Brain
C. Skin
D. Heart
Answer: C
4. Which organ purifies blood in the human body?
A. Heart
B. Liver
C. Kidney
D. Lungs
Answer: C
5. Which part of the body helps in breathing?
A. Heart
B. Lungs
C. Liver
D. Brain
Answer: B
6. How many chambers are there in the human heart?
A. 2
B. 3
C. 4
D. 5
Answer: C
7. Which bone is the longest in the human body?
A. Tibia
B. Humerus
C. Femur
D. Spine
Answer: C
8. Which organ produces insulin?
A. Liver
B. Pancreas
C. Kidney
D. Stomach
Answer: B
9. Which blood cells help in fighting infections?
A. Red blood cells
B. White blood cells
C. Platelets
D. Plasma
Answer: B
10. Which vitamin helps in blood clotting?
A. Vitamin A
B. Vitamin B
C. Vitamin C
D. Vitamin K
Answer: D
11. Which part of the eye controls the amount of light entering?
A. Retina
B. Lens
C. Iris
D. Cornea
Answer: C
12. What is the normal body temperature of humans?
A. 35°C
B. 36°C
C. 37°C
D. 38°C
Answer: C
13. Which organ stores bile?
A. Liver
B. Gallbladder
C. Pancreas
D. Stomach
Answer: B
14. Which system controls body movements?
A. Digestive system
B. Respiratory system
C. Nervous system
D. Skeletal system
Answer: C
15. Which organ is responsible for digestion of food?
A. Heart
B. Stomach
C. Lungs
D. Kidney
Answer: B
16. How many teeth does an adult human have?
A. 28
B. 30
C. 32
D. 34
Answer: C
17. Which organ filters toxins from the blood?
A. Heart
B. Lungs
C. Liver
D. Brain
Answer: C
18. Which part of the brain controls balance?
A. Cerebrum
B. Cerebellum
C. Medulla
D. Hypothalamus
Answer: B
19. Which muscle works without conscious control?
A. Skeletal muscle
B. Voluntary muscle
C. Cardiac muscle
D. Arm muscle
Answer: C
20. Which blood group is known as the universal donor?
A. A
B. B
C. AB
D. O
Answer: D
21. Which organ produces urine?
A. Liver
B. Kidney
C. Bladder
D. Pancreas
Answer: B
22. Which part of the body contains the smallest bones?
A. Nose
B. Ear
C. Fingers
D. Toes
Answer: B
23. Which system helps in transporting blood?
A. Nervous system
B. Digestive system
C. Circulatory system
D. Respiratory system
Answer: C
24. Which gas is absorbed by blood in lungs?
A. Carbon dioxide
B. Nitrogen
C. Oxygen
D. Hydrogen
Answer: C
25. Which organ is called the “powerhouse” of the cell?
A. Nucleus
B. Ribosome
C. Mitochondria
D. Cytoplasm
Answer: C
26. Which bone protects the brain?
A. Rib cage
B. Skull
C. Spine
D. Pelvis
Answer: B
27. Which part connects muscles to bones?
A. Ligament
B. Tendon
C. Cartilage
D. Joint
Answer: B
28. How many ribs are there in the human body?
A. 20
B. 22
C. 24
D. 26
Answer: C
29. Which system controls hormones?
A. Nervous system
B. Digestive system
C. Endocrine system
D. Skeletal system
Answer: C
30. Which part of the body stores urine?
A. Kidney
B. Ureter
C. Bladder
D. Urethra
Answer: C
31. Which organ helps in speech?
A. Tongue
B. Teeth
C. Larynx
D. Pharynx
Answer: C
32. Which bone is also called the collarbone?
A. Scapula
B. Clavicle
C. Sternum
D. Radius
Answer: B
33. Which part of the brain controls breathing?
A. Cerebrum
B. Cerebellum
C. Medulla
D. Hypothalamus
Answer: C
34. Which system protects the body from diseases?
A. Digestive system
B. Immune system
C. Respiratory system
D. Nervous system
Answer: B
35. Which organ produces bile?
A. Gallbladder
B. Pancreas
C. Liver
D. Intestine
Answer: C
36. Which bone is found in the arm?
A. Femur
B. Tibia
C. Humerus
D. Fibula
Answer: C
37. Which blood cells help in clotting?
A. Red blood cells
B. White blood cells
C. Platelets
D. Plasma
Answer: C
38. Which organ absorbs nutrients from food?
A. Stomach
B. Small intestine
C. Large intestine
D. Liver
Answer: B
39. Which sense organ helps us to smell?
A. Tongue
B. Nose
C. Ear
D. Eye
Answer: B
40. Which system is made up of bones?
A. Muscular system
B. Skeletal system
C. Nervous system
D. Digestive system
Answer: B
41. Which organ is responsible for vision?
A. Brain
B. Eye
C. Ear
D. Nose
Answer: B
42. Which bone protects the heart and lungs?
A. Skull
B. Spine
C. Rib cage
D. Pelvis
Answer: C
43. Which part of the body regulates temperature?
A. Brain
B. Skin
C. Heart
D. Lungs
Answer: B
44. Which muscle is found only in the heart?
A. Smooth muscle
B. Skeletal muscle
C. Cardiac muscle
D. Voluntary muscle
Answer: C
45. Which system removes waste from the body?
A. Digestive system
B. Excretory system
C. Respiratory system
D. Nervous system
Answer: B
46. Which part of the ear helps in balance?
A. Cochlea
B. Eardrum
C. Semicircular canals
D. Auditory nerve
Answer: C
47. Which organ produces red blood cells?
A. Liver
B. Kidney
C. Bone marrow
D. Spleen
Answer: C
48. Which part of the body connects the brain to the spinal cord?
A. Cerebrum
B. Cerebellum
C. Medulla
D. Hypothalamus
Answer: C
49. Which is the hardest substance in the human body?
A. Bone
B. Tooth enamel
C. Cartilage
D. Nail
Answer: B
50. Which organ helps in hearing?
A. Nose
B. Eye
C. Ear
D. Tongue
Answer: C
51. Which organ is responsible for pumping blood?
A. Brain
B. Lungs
C. Heart
D. Liver
Answer: C
52. Which system controls voluntary actions?
A. Nervous system
B. Digestive system
C. Endocrine system
D. Respiratory system
Answer: A
53. Which organ stores urine before excretion?
A. Kidney
B. Ureter
C. Bladder
D. Urethra
Answer: C
54. Which part of the eye forms the image?
A. Cornea
B. Iris
C. Retina
D. Lens
Answer: C
55. Which hormone controls growth?
A. Insulin
B. Thyroxine
C. Adrenaline
D. Growth hormone
Answer: D
56. Which organ helps in detoxifying the blood?
A. Kidney
B. Liver
C. Heart
D. Lungs
Answer: B
57. Which bone forms the backbone?
A. Rib
B. Skull
C. Vertebra
D. Pelvis
Answer: C
58. Which blood group is known as the universal recipient?
A. A
B. B
C. O
D. AB
Answer: D
59. Which organ produces bile juice?
A. Gallbladder
B. Pancreas
C. Liver
D. Small intestine
Answer: C
60. Which system includes glands and hormones?
A. Nervous system
B. Digestive system
C. Endocrine system
D. Circulatory system
Answer: C
61. Which part of the body helps in chewing food?
A. Tongue
B. Teeth
C. Lips
D. Jaw
Answer: B
62. Which organ absorbs oxygen from the air?
A. Heart
B. Liver
C. Lungs
D. Brain
Answer: C
63. Which part connects bones at a joint?
A. Tendon
B. Ligament
C. Muscle
D. Cartilage
Answer: B
64. Which organ regulates blood sugar level?
A. Liver
B. Pancreas
C. Kidney
D. Thyroid
Answer: B
65. Which system is responsible for movement?
A. Skeletal system
B. Muscular system
C. Nervous system
D. Digestive system
Answer: B
66. Which part of the brain is responsible for intelligence?
A. Cerebellum
B. Medulla
C. Cerebrum
D. Hypothalamus
Answer: C
67. Which organ is affected by hepatitis?
A. Kidney
B. Liver
C. Heart
D. Lungs
Answer: B
68. Which muscle is involuntary?
A. Arm muscle
B. Leg muscle
C. Cardiac muscle
D. Skeletal muscle
Answer: C
69. Which organ produces saliva?
A. Liver
B. Pancreas
C. Salivary glands
D. Stomach
Answer: C
70. Which system supplies oxygen to the body?
A. Digestive system
B. Circulatory system
C. Respiratory system
D. Nervous system
Answer: C
71. Which bone is also called the kneecap?
A. Tibia
B. Fibula
C. Femur
D. Patella
Answer: D
72. Which organ stores glycogen?
A. Pancreas
B. Liver
C. Kidney
D. Spleen
Answer: B
73. Which part of the ear receives sound waves?
A. Cochlea
B. Auditory nerve
C. Eardrum
D. Pinna
Answer: D
74. Which blood cells carry oxygen?
A. White blood cells
B. Platelets
C. Red blood cells
D. Plasma
Answer: C
75. Which organ helps in removing carbon dioxide?
A. Heart
B. Lungs
C. Kidney
D. Liver
Answer: B
76. Which system maintains body posture?
A. Nervous system
B. Muscular system
C. Digestive system
D. Excretory system
Answer: B
77. Which organ is responsible for taste?
A. Nose
B. Tongue
C. Eye
D. Ear
Answer: B
78. Which part of the digestive system absorbs water?
A. Small intestine
B. Stomach
C. Large intestine
D. Esophagus
Answer: C
79. Which gland is known as the master gland?
A. Thyroid
B. Adrenal
C. Pituitary
D. Pancreas
Answer: C
80. Which organ breaks down alcohol?
A. Kidney
B. Liver
C. Stomach
D. Pancreas
Answer: B
81. Which bone protects the spinal cord?
A. Rib
B. Skull
C. Vertebral column
D. Pelvis
Answer: C
82. Which part of the brain controls hunger and thirst?
A. Cerebrum
B. Cerebellum
C. Medulla
D. Hypothalamus
Answer: D
83. Which system helps fight infections?
A. Respiratory system
B. Digestive system
C. Immune system
D. Skeletal system
Answer: C
84. Which organ is responsible for smell?
A. Nose
B. Tongue
C. Eye
D. Ear
Answer: A
85. Which organ stores blood?
A. Liver
B. Kidney
C. Spleen
D. Pancreas
Answer: C
86. Which part of the eye focuses light?
A. Retina
B. Iris
C. Cornea
D. Lens
Answer: D
87. Which system removes liquid waste?
A. Digestive system
B. Respiratory system
C. Excretory system
D. Nervous system
Answer: C
88. Which organ produces sweat?
A. Liver
B. Skin
C. Kidney
D. Lungs
Answer: B
89. Which vitamin is essential for good eyesight?
A. Vitamin A
B. Vitamin B
C. Vitamin C
D. Vitamin D
Answer: A
90. Which part of the brain controls heartbeat?
A. Cerebrum
B. Cerebellum
C. Medulla
D. Hypothalamus
Answer: C
91. Which organ connects mouth to stomach?
A. Trachea
B. Esophagus
C. Intestine
D. Pharynx
Answer: B
92. Which system supports and protects organs?
A. Muscular system
B. Nervous system
C. Skeletal system
D. Circulatory system
Answer: C
93. Which organ produces hormones adrenaline?
A. Thyroid gland
B. Pancreas
C. Adrenal gland
D. Pituitary gland
Answer: C
94. Which part of the body helps in articulation of speech?
A. Teeth
B. Tongue
C. Larynx
D. Lips
Answer: C
95. Which organ helps in digestion of fats?
A. Stomach
B. Pancreas
C. Liver
D. Gallbladder
Answer: D
96. Which bone is found in the leg?
A. Radius
B. Ulna
C. Tibia
D. Humerus
Answer: C
97. Which part of the cell controls activities?
A. Cytoplasm
B. Ribosome
C. Nucleus
D. Mitochondria
Answer: C
98. Which organ helps maintain balance?
A. Eye
B. Ear
C. Nose
D. Brain
Answer: B
99. Which system circulates nutrients and oxygen?
A. Digestive system
B. Respiratory system
C. Circulatory system
D. Nervous system
Answer: C
100. Which organ is responsible for immunity?
A. Liver
B. Spleen
C. Kidney
D. Pancreas
Answer: B
