Which of the following is considered to be the "functional unit" of skeletal muscle fibers?

A. The sarcomere
B. The Z disc
C. The myofilaments
D. The sarcoplasmic reticulum
E. The neuromuscular junction


A. The sarcomere

Anatomy & Physiology

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Indicate whether the statement is true or false.

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Descending branches of the vagus and splanchnic nerves travel through the ________ plexus

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Which of the following statements describes the epidermis?

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