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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- A. Osteoblast
- B. Osteoclast
- C. Osteocytes
- D. Chondrocytes
Explanation: These results suggest that most of the cells in the soft callus are derived from the mesenchymal progenitors in the periosteum, and not…
Correct answer: Osteocytes- A. Cranium and facial bones
- B. Sternum, ribs, vertebrae
- C. Lumbar, Thoracic and pelvic bones
- D. Pectoral girdles, pelvic girdle, and appendages
Explanation: The axial skeleton includes the bones along the central axis of the body, including the cranium and facial bones, the sternum, ribs, and…
Correct answer: Pectoral girdles, pelvic girdle, and appendages- A. 7
- B. 19
- C. 14
- D. 33
Explanation: There are 7 vertebrae in the cervical region and 12 in the thoracic region, so 19 is the correct answer.
Correct answer: 19- A. Appendicular skeleton
- B. Hydrostatic skeleton
- C. Exoskeleton
- D. Axial skeleton
Explanation: The axial skeleton forms a vertical axis that includes the head, neck, back, and chest.
Correct answer: Axial skeleton- A. 12
- B. 14
- C. 16
- D. 18Preparing For College Admissions Tests
Explanation: Humans have 12 pairs of ribs, and the upper 7 pairs attach directly to the sternum, so the number of true ribs is 7 pairs x 2 ribs per…
Correct answer: 14- A. 33
- B. 20
- C. 15
- D. 32Health
Explanation: Children have 20 primary teeth, arranged as 10 in the upper jaw and 10 in the lower jaw.
Correct answer: 20- A. 8
- B. 14
- C. 33
- D. 22
Explanation: The cranium has 8 bones. 14 bones are found in the fingers of each hand and also in the toes of each foot.
Correct answer: 22- A. Foramen Triosseum
- B. Foramen Magnum
- C. Acetabulum
- D. Ischia Pubic Foramen
Explanation: The foramen magnum is a large opening in the occipital bone of the human skull.
Correct answer: Foramen Magnum- A. Pelvic girdle
- B. Skull
- C. Sternum
- D. Vertebral column
- E. Ribs
Explanation: Explanation for this question will be added soon.
Correct answer: Pelvic girdle- A. Chondroitin
- B. Ossein
- C. Casein
- D. Cartilagin
- E. None
Explanation: Proteoglycans consist of polysaccharides attached with protein chondroitin.
Correct answer: Chondroitin- A. Elastic cartilage
- B. Fibrous cartilage
- C. Perichondrium
- D. Hyaline cartilage
Explanation: Hyaline cartilage is the most abundant type of cartilage and is found in the nose, ears, trachea, larynx, and smaller respiratory tubes.
Correct answer: Hyaline cartilage- A. Fibrous
- B. Hyaline
- C. Elastic
- D. Flexible
Explanation: Hyaline cartilage is a glossy, greyish-white tissue with a uniform appearance.
Correct answer: Hyaline- A. Lacks vascular supply
- B. Lacks mineral deposits in matrix
- C. Has less number of cells deep down
- D. Lacks protein in matrix
Explanation: Cartilage is more difficult to heal than bone primarily because it lacks a vascular supply, meaning it has very limited blood flow.
Correct answer: Lacks vascular supply- A. Skin
- B. Liver
- C. Large intestine
- D. Both A and B
Explanation: Skin covers our entire body and has the largest surface area out of all the organs.
Correct answer: Skin- A. Hyaline cartilage
- B. Elastic cartilage
- C. Fibrocartilage
- D. None of these
Explanation: Hyaline cartilage is the most common type of cartilage in your body. It lines your joints and caps the ends of your bones.
Correct answer: Hyaline cartilage- A. Alkaline phosphatase
- B. LDH-1
- C. Acidic phosphatase
- D. None of these options are correct
Explanation: The enzyme that is raised in rickets is alkaline phosphatase. Alkaline phosphatase is an enzyme that is involved in the mineralization of…
Correct answer: Alkaline phosphatase- A. Endoskeleton.
- B. Hydrostatic skeleton.
- C. Exoskeleton.
- D. Both A and B.
Explanation: Endoskeleton is an internal skeleton, such as the bony or cartilaginous skeleton of vertebrates.
Correct answer: Endoskeleton.- A. Calcium phosphate
- B. Calcium carbonate
- C. Calcium oxalate
- D. Calcium bicarbonate
Explanation: Explanation:The collagen fibers of bone are hardened by the deposition of calcium phosphate, which forms the mineral component of bone…
Correct answer: Calcium phosphate- A. Lymph nodes
- B. Red bone marrow
- C. Tonsils
- D. Spleen
Explanation: Option[a] Lymph nodes don't have a role in the production of WBC, they filter substances that travel through the lymphatic fluid.Option…
Correct answer: Red bone marrow- A. Chrondrocytes
- B. Osteoblasts
- C. Ostecytes
- D. Osteoclasts
Explanation: Option [A] Chondrocytes are the cell responsible for cartilage formation cell,they are the only cells found in healthy cartilageOption[b]…
Correct answer: Chrondrocytes