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Question 71

A person remains upright without making a maximum effort. What contribution do skeletal muscles make to this posture?

  1. They remain completely inactive
  2. They maintain gentle ongoing activityCorrect answer
  3. They contract at maximum force
  4. They turn into smooth muscle

Explanation

A small, ongoing level of skeletal-muscle activity helps hold body parts in stable positions against gravity. Maximum contraction is unnecessary and would not describe the controlled low-level activity used for ordinary posture.

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Question 71: A person remains upright without making a maximum effort.… · Human Body Systems · Questena