A sarcomere is a segment of myofibril between two successive:
A) Z-lines.
B) A-bands.
C) I-bands.
D) H-bands.

Question

Quizplus · Accepted Answer

A sarcomere is defined as the segment of the myofibril that is located between two Z-lines. The Z-line is the thin, dark line that divides the sarcomere and serves as an anchor for actin filaments, which are responsible for muscle contractions. Therefore, choice A is the correct answer.

A Sarcomere Is a Segment of Myofibril Between Two Successive