Multiple Choice
Which statement about the microscopic anatomy of skeletal muscle fibers is true?
A) Tubular extensions of the sarcolemma penetrate the fiber transversely.
B) Cross striations result from the lateral alignment of thick and thin filaments.
C) Each fiber has many nuclei.
D) Muscle fibers are continuous from tendon to tendon.
E) All of the answers are correct.
Correct Answer:
Verified
Correct Answer:
Verified
Q3: A patient takes a medication that blocks
Q18: When contraction occurs,<br>A)the H bands get smaller.<br>B)the
Q19: When a skeletal muscle fiber contracts,<br>A)the H
Q22: Which of the following statements is false?<br>A)Cardiac
Q25: Fast fibers<br>A)have low resistance to fatigue.<br>B)rely on
Q26: In a sarcomere, cross-bridge attachment occurs specifically
Q26: The rapid rise and fall in force
Q53: Active sites on the actin become available
Q69: The dense layer of connective tissue that
Q78: Figure 10-2 Muscle Contractions<br><img src="https://d2lvgg3v3hfg70.cloudfront.net/TB4858/.jpg" alt="Figure 10-2