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
Q19: At each end of the muscle,the collagen
Q20: In a sarcomere,thick filaments are linked laterally
Q22: The skeletal muscle complex known as the
Q23: Q24: Since each myofibril is attached at either Q28: The thin filaments of striated muscle are Q31: Each thin filament consists of Q32: At rest, the tropomyosin molecule is held Q33: The area in the center of the Q36: Figure 10-1 Skeletal Muscle Fiber![]()
A) two actin![]()
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