Which statement about the microscopic anatomy of skeletal muscle fibers is true? a. Muscle fibers are continuous from tendon to tendon. b. Cross striations result from the lateral alignment of thick and thin filaments. c. Each fiber has many nuclei. d. Tubular extensions of the sarcolemma penetrate the fiber transversely. e. All of the answers are correct.

Which statement about the microscopic anatomy of skeletal muscle fibers is true?
a. Muscle fibers are continuous from tendon to tendon.
b. Cross striations result from the lateral alignment of thick and thin filaments.
c. Each fiber has many nuclei.
d. Tubular extensions of the sarcolemma penetrate the fiber transversely.
e. All of the answers are correct.

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