Question

fill in the blank question

the portion of a myofibril from one z disc to the next is called a(n)

Explanation:

Identify the structural unit of a myofibril

Using the Z Disc Anatomy knowledge point

A myofibril is composed of repeating contractile units. The region spanning from one Z disc (or Z line) to the next adjacent Z disc is defined as a sarcomere, which is the basic functional unit of skeletal muscle tissue.

Answer:

The portion of a myofibril from one Z disc to the next is called a(n) <blank>sarcomere</blank>.