A patient is unable to maintain posture because the muscles contract continuously without conscious control. Which feature best describes skeletal muscle?
Correct answer: A. It is striated and usually under voluntary control
- A. It is striated and usually under voluntary control
- B. It is non-striated and controlled by hormones only
- C. It is branched and joined by intercalated discs
- D. It is found only in the walls of hollow organs
Explanation
Skeletal muscle is striated and is generally controlled voluntarily through the somatic nervous system. Smooth muscle is non-striated and involuntary, while branched fibres with intercalated discs describe cardiac muscle.
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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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