A patient with prolonged immobilisation has reduced muscle size in the affected limb. Which term describes this change?
Correct answer: B. Muscle atrophy
- A. Muscle hypertrophy
- B. Muscle atrophy
- C. Bone hyperplasia
- D. Joint ankylosis
Explanation
Muscle atrophy is a decrease in muscle size and strength, commonly caused by disuse, immobilisation or certain nerve disorders. Hypertrophy means enlargement of muscle fibres, while ankylosis refers to abnormal joint stiffness or fusion.
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About Skeletal and Muscular Systems
The skeletal and muscular systems include bone structure, joints, cartilage, the axial and appendicular skeleton, and the roles of ligaments and tendons. They also cover skeletal muscle organization, the sliding filament mechanism, neuromuscular contraction, and common differences between voluntary skeletal muscle, cardiac muscle and smooth muscle.
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