Free Human Skeleton MCQs with Answers
138 Human Skeleton MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
The human skeleton provides support, protects organs, enables movement with muscles and stores minerals while bone marrow produces blood cells. Questions cover the axial and appendicular skeleton, types of bones and joints, cartilage, ligaments and tendons, and the difference between fixed, slightly movable and freely movable joints.
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138 questions · page 6 of 7
- A. Appendicular skeleton
- B. Exoskeleton
- C. Endoskeleton
- D. Hydrostatic skeleton
Explanation: The human skeleton consists of the axial skeleton, which comprises the cranium, backbone, and ribs, and the appendicular skeleton, which…
Correct answer: Appendicular skeleton- A. Sacrum
- B. Cervical vertebrae
- C. Pubis
- D. Coccyx
Explanation: The last 4 vertebrae in humans are fused into a triangular structure known as the coccyx.
Correct answer: Coccyx- A. 3 bones
- B. 4 bones
- C. 2 bones
- D. 1 bone
Explanation: Each half of the pelvic girdle comprises 3 bones: the ilium, the pubis, and the ischium.
Correct answer: 3 bones- A. Ulna
- B. Fibula
- C. Tibia
- D. Femur
Explanation: The femur is the strongest and largest bone in the human body, whereas the humerus is the second-largest bone.
Correct answer: Femur- A. 4 Vertebrae
- B. 5 Vertebrae
- C. 6 Vertebrae
- D. 3 Vertebrae
Explanation: The sacrum is formed by the fusion of five vertebrae (S1-S5) in the pelvic region of the human body.
Correct answer: 5 Vertebrae- A. Compact bone
- B. Cartilage
- C. Osteoblast cells
- D. Osteoclast cells
Explanation: The spongy bone is usually surrounded by a shell of the compact bone which provides added strength and rigidity.
Correct answer: Compact bone- A. Haversian canals
- B. Canaliculus
- C. Bone marrow tissues
- D. Calcium phosphate
Explanation: Calcium phosphate is responsible for the mineralization of the bones that essentially gives them their rigidity.
Correct answer: Calcium phosphate- A. 8
- B. 14
- C. 20
- D. 22
Explanation: The skull is a complex of 22 bones which can be divided into two categories: the cranium and the facial bones.
Correct answer: 22- A. 33 bones
- B. 24 bones
- C. 12 bones
- D. 7 bones
Explanation: The spine or the vertebrae consists of 33 bones interlocked with each other to give the spinal column.
Correct answer: 33 bones110. Scapula is a:
- A. Tail bone
- B. Hip bone
- C. Skull bone
- D. Shoulder bone
Explanation: The scapula or shoulder blade is the bone that connects the clavicle to the humerus.
Correct answer: Shoulder bone- A. There are many blood vessels in cartilage
- B. It is a form of connective tissue
- C. It covers ends of the bones at joints
- D. It is much softer than bone
Explanation: This statement is false. Cartilage is avascular, meaning it does not contain blood vessels.
Correct answer: There are many blood vessels in cartilage- A. Connective tissues
- B. Epithelial tissues
- C. Muscular tissues
- D. Nervous tissues
Explanation: Cartilage is a type of connective tissue. It is a flexible and semi-rigid tissue found in various parts of the body, including the joints…
Correct answer: Connective tissues- A. Temporal
- B. Occipital
- C. Frontal
- D. Vomer
Explanation: The temporal bones are located on the sides and base of the skull, near the ears.
Correct answer: Temporal- A. 70%
- B. 20%
- C. 99%
- D. 60%
Explanation: Bone cells are composed of approximately 20% water, which is essential for facilitating cellular functions and maintaining the hydration…
Correct answer: 20%- A. Humerus
- B. Ulna
- C. Femur
- D. Radius
Explanation: The femur extends from the hip joint to the knee joint, forming the upper leg. It connects the pelvis to the tibia (shinbone).
Correct answer: Femur- A. Osteoblasts
- B. Osteocytes
- C. Osteoclasts
- D. Osteons
Explanation: Osteoblasts are cells responsible for bone formation. They synthesize and secrete the bone matrix, which is primarily composed of collagen…
Correct answer: Osteoblasts- A. 37
- B. 35
- C. 34
- D. 33
Explanation: Vertebrae are the 33 individual bones that interlock with each other to form the spinal column.
Correct answer: 33- A. 2
- B. 3
- C. 4
- D. 5
Explanation: Refer to the diagram below.The number of vertebrae in the coccyx is 4.
Correct answer: 4- A. Two
- B. Three
- C. Four
- D. Five
Explanation: The sacrum is a large, triangular bone located at the base of the vertebral column, between the lumbar vertebrae and the coccyx.
Correct answer: Five- A. 37
- B. 35
- C. 34
- D. 33
Explanation: This option is correct. The vertebral column in humans consists of 33 vertebrae, including 7 cervical vertebrae, 12 thoracic vertebrae, 5…
Correct answer: 33