Myofilaments connect to the sarcolemma and are held in an aligned pattern at the Z discs and M lines.

Question

Quizplus · Accepted Answer

Myofilaments, which include actin and myosin, are indeed organized in a specific pattern within muscle cells, connecting to the sarcolemma at their ends. They are held in an aligned pattern by structures known as Z discs (or Z lines) and M lines, which are part of the sarcomere, the basic unit of muscle fiber contraction.

Myofilaments Connect to the Sarcolemma and Are Held in an Aligned