Question

question 55
which of the following statements about skeletal muscle is true:
short muscle fibers run at an angle to the longitudinal axis of the muscle.
during muscle contraction, skeletal muscle lengthens.
skeletal muscles are usually linked to each other by tendons.
skeletal muscles are not capable of rapid contraction and relaxation.

Explanation:

• Analyze Option A: In some skeletal muscles (like pennate muscles), short muscle fibers do run at an angle to the muscle’s longitudinal axis, which is correct.
• Analyze Option B: During contraction, skeletal muscle shortens (not lengthens) to generate force, so this is false.
• Analyze Option C: Skeletal muscles are linked to bones (not other muscles) by tendons, so this is false.
• Analyze Option D: Skeletal muscles are highly capable of rapid contraction/relaxation (e.g., for movement), so this is false.

Answer:

A. Short muscle fibers run at an angle to the longitudinal axis of the muscle.