Which feature creates the striated appearance of skeletal muscles?
A) Number of actin filaments in a myofibril
B) Pattern of overlap of actin and myosin filaments in a sarcomere
C) Number of myofibrils in a muscle cell
D) Arrangement of muscle fibers in a muscle
E) Number of actin filaments surrounding a myosin filament

Question

Quizplus · Accepted Answer

The pattern of overlap of actin and myosin filaments in a sarcomere creates the striated appearance of skeletal muscles. Sarcomeres are repeated units of these filaments that make up myofibrils, the basic structural unit of muscle fibers. When myosin and actin filaments overlap in a specific pattern within a sarcomere, it creates the striations seen in skeletal muscles. The other options listed do not directly contribute to the striated appearance of skeletal muscles.

Which Feature Creates the Striated Appearance of Skeletal Muscles