Which of the following statements is most accurate?

Question

Quizplus · Accepted Answer

During isotonic contraction, the tension generated by the muscle remains relatively constant as the muscle shortens. The I band, which is the region of the sarcomere between the ends of the thick myofilaments, shortens during isotonic contraction. T tubules, which are invaginations of the sarcolemma that help to spread action potentials deep into the muscle fiber, do not slide during contraction. During isometric contraction, the myofilaments are generating tension but do not slide.

Which of the Following Statements Is Most Accurate