The Basic Contractile Unit of a Skeletal Muscle is The

Question

The basic contractile unit of a skeletal muscle is the
A) sarcomere
B) actin
C) myosin
D) Z lines

Accepted Answer

The sarcomere is the basic contractile unit of skeletal muscle. It is made up of actin and myosin filaments arranged in a specific pattern, with Z lines marking the boundaries. While actin and myosin play important roles in muscle contraction, they are not the basic contractile unit themselves.