The set of structures which comprises human axial skeleton is
Correct answer: A. Skull, vertebrae, ribs and sternum
- A. Skull, vertebrae, ribs and sternum
- B. Sternum, humerus, femur and phalanges.
- C. Skull, pectoral girdle, pelvic girdle and ribs
- D. Vertebrae, clavicle, shoulder blade and humerus
Explanation
The axial skeleton consists of the skull, vertebrae, ribs, and sternum. These structures form the central framework of the body, supporting and protecting vital organs. Option A correctly lists these components. Option B includes humerus, femur, and phalanges, which are part of the appendicular skeleton. Option C incorrectly lists the pectoral and pelvic girdles, which also belong to the appendicular skeleton. Option D includes the clavicle, shoulder blade, and humerus, which are not part of the axial skeleton.
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About Human Skeleton
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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