The functional unit of a myofibril is the
A)sarcomere.
B)sarcolemma.
C)motor unit.
D)thick filament.
E)thin filament.

Name: The functional unit of a myofibril is the A)sarcomere. B)sarcolemma. C)motor unit. D)thick filament. E)thin filament.
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Question

Quizplus · Accepted Answer

The functional unit of a myofibril is the sarcomere, which is the smallest contractile unit of a muscle fiber. It is composed of overlapping thick and thin filaments, which slide past each other to cause muscle contraction.

The Functional Unit of a Myofibril Is the