Sarcomere is between:: (A) Two adjacent M lines, (B) Two adjacent Z lines, (C) Two adjacent H lines, (D) Two adjacent I bands
Answer is B. The light I band is divided by the dark Z line, and the dark A band has the lighter H band in its center. A transverse M line is seen in the middle of the H and, and this line plus the narrow light areas on either side of it are sometimes called the pseudo-H zone. The area between two adjacent Z lines is called a sarcomere.