Question

question 57
which of the following statements about skeletal muscle is true:
skeletal muscles are not capable of rapid contraction and relaxation
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.
question 58
the sliding of protein filaments over each other to create movement is called the
true
false

Explanation:

For Question 57:

• Skeletal muscles can contract and relax rapidly, so the first option is false.
• Short muscle fibers do not necessarily run at an angle to the longitudinal axis of the muscle.
• During muscle contraction, skeletal muscle shortens, not lengthens.
• Skeletal muscles are usually linked to bones by tendons, not to each other by tendons in the typical sense described in the option.

For Question 58: The sliding of protein filaments (actin and myosin) over each other to create movement is indeed a fundamental mechanism in muscle - contraction, so it is true.

Answer:

Question 57: None of the options are correct based on typical knowledge of skeletal muscle.
Question 58: True